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Manual Siemens Software version syngo CT 2005C

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  • Siemens Software version syngo CT 2005C - page 1

    SOMA T OM Spirit Application Guide Protocols Principles Helpful Hints syngo 3D syngo Fly Thro ugh syngo Dental CT syngo Osteo CT syngo Vol u me Ev a lu at io n syngo Dynamic Evaluat ion Software V ersion syngo CT 2005C C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 1 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 2

    2 The information pr esented in this Application Guide is for illustration only and is no t intended t o be relied upon by the r eader for instruc tion as to the practice of medicine. Any healt h care practitioner r eading this information is r eminded that they must use their own learning, training and exper t ise in dealing with their individual ...

  • Siemens Software version syngo CT 2005C - page 3

    Ov er vie w 3 User Documentation 14 Scan and Reconstruction 16 Dose Inf ormation 28 Wor kflow Inf ormation 36 Application Inf ormation 54 Head 70 Neck 88 Shoulder 94 Thorax 98 Abdomen 110 Pelvis 124 Spine 132 Upper Extremities 146 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 3 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 4

    4 Lower Extremities 154 Vascular 162 Specials 176 Children 184 syngo 3D 240 syngo Fly Through 258 syngo Dental CT 268 syngo Osteo CT 274 syngo V olume Evaluation 288 syngo Dynamic Evaluation 306 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 4 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 5

    5 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 5 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 6

    6 Contents User Documentation 14 Scan and Reconstruction 16 • Concept of Scan Pro tocols 16 • Scan Set Up 17 • Scan Modes 18 - Sequential Scanning 18 - Spiral Scanning 18 - Dynamic Serioscan 18 • Slice Collimation and Slice Width 19 - Slice Collimation and Slice Width for Spiral Mode and HR Spir al Mode 20 - Slice Collimation and Slice Widt ...

  • Siemens Software version syngo CT 2005C - page 7

    Contents 7 • Contrast Medium 45 - The Basics 45 -I V I n j e c t i o n 4 7 -B o l u s T r a c k i n g 4 8 - T est Bolus using C ARE Bolus 50 - T est Bolus 51 Application Inf ormation 54 • SOMA T OM life 54 -G e n e r a l I n f o r m a t i o n 5 4 -K e y F e a t u r e s 5 5 - Description 56 - Access t o Computer Based T raining or Manuals on CD ...

  • Siemens Software version syngo CT 2005C - page 8

    8 Contents Neck 88 • Overview 88 • Hints in General 89 -B o d y K e r n e l s 9 0 • Neck 92 Shoulder 94 • Overview 94 • Hints in General 95 -B o d y K e r n e l s 9 5 • Shoulder 96 Thorax 98 • Overview 98 • Hints in General 99 - Body K ernels 101 • ThoraxRoutine/Th oraxRoutine08s 102 • ThoraxF ast 104 • ThoraxHRSeq 106 • Lun ...

  • Siemens Software version syngo CT 2005C - page 9

    Contents 9 Pelvis 124 • Overview 124 • Hints in General 125 - Body K ernels 125 • Pelvis 126 • Hip 128 • SI_Joints 130 Spine 132 • Overview 132 • Hints in General 133 - Body K ernels 135 • C-Spine 136 • C-SpineSeq 138 • Spine 140 • SpineSeq 142 • Osteo 144 Upper Extremities 146 • Overview 146 • Hints in General 147 - Bod ...

  • Siemens Software version syngo CT 2005C - page 10

    10 Contents Vascular 162 • Overview 162 • Hints in General 163 - Head K ernels 163 - Body K ernels 163 • HeadAngio/HeadAngio08s 164 • Caro tidAngio/CarotidAngio08s 166 • ThorAngio/ThorAngio08s 168 • Embolism 170 • BodyAngioRou tine/BodyAngioRoutine 08s 172 • BodyAngioFast 174 Specials 176 • Overview 176 - T rauma 176 - Interventio ...

  • Siemens Software version syngo CT 2005C - page 11

    Contents 11 • ThoraxRoutine_Baby 206 • ThoraxRoutine_Child 208 • ThoraxHRSeq_Baby 210 • ThoraxHRSeq_Child 212 • Abdomen_Baby 214 • Abdomen_Child 216 • Spine_Baby 2 18 • Spine_Child 220 • ExtrHR_Baby 222 • ExtrHR_Child 224 • HeadAngio 226 • HeadAngio08s 228 • Caro tidAngio 230 • Caro tidAngio08s 232 • BodyAngio 234 • ...

  • Siemens Software version syngo CT 2005C - page 12

    12 Contents - Auto Load in 3D and P ost-proces sing Presets 257 - Blow-up Mode 257 syngo Fly Through 258 • Ke y Features 258 • Prereq uisites 259 • The Basics for CT Virtual Endos cop y 259 - SSD and VRT Prese ts for Endoscopic Renderings 259 - Endoscopic Viewing Paramete rs/ Fly Cone Settings 260 - Patient Preparation 262 • Workflow 263 - ...

  • Siemens Software version syngo CT 2005C - page 13

    Contents 13 syngo Dynamic Evaluation 306 • Prereq uisites 308 • Workflow 309 - 1. Loading the Images 309 - 2. Inspecting the Input Images 310 - 3. Generation of Pa ramete r Images 310 - 4. Creating a Baseline Image 313 - 5. Evaluation of Re gion of Int erests 314 - 6. Enhancement Cur v e 315 - 7. Documentation of Results 316 • General Hints 3 ...

  • Siemens Software version syngo CT 2005C - page 14

    14 For further inf ormation ab out the basic operation, please ref er to the corr esponding syngo CT Operator Manual: syngo CT Operator Manual Vo lu m e 1 : Security Package Basics Preparations Examination C ARE Bolus CT syngo CT Operator Manual Vo lu m e 2 : syngo Patient Br owser syngo Viewing syngo Filming syngo 3D syngo CT Operator Manual Vo lu ...

  • Siemens Software version syngo CT 2005C - page 15

    User Documentation 15 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 15 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 16

    16 Scan and Reconstruction Concept of Scan Pr ot ocols The scan pro tocols for adult and childr en are defined according t o body regions – Head , Neck , Shoulder , Thorax , Abdomen , Pelvis , Spine , Upper Extremities , Lowe r Extremities , Specials , and Va sc ul ar . The general concept is a s follo ws: All pro tocols without suff ix ar e st a ...

  • Siemens Software version syngo CT 2005C - page 17

    Scan and Reconstruction 17 Scan Set U p Scans can be simply set up by selec ting a predefined examination pr ot ocol. T o repeat any mode, just click the chronicle with the right mouse button f or “ repeat ”. T o delete it, select “ cut “. Each range name in the chr on - icle can be easily changed befor e “ load “. Multiple ranges can b ...

  • Siemens Software version syngo CT 2005C - page 18

    18 Scan and Reconstruction Scan Modes Sequential Scanning This is an incremental, slice-by-slice imaging mode in which there is no table movement during data acquisi - tion. A minimum interscan delay in betw een each acquisition is required to mov e the table to the next slice position. Spiral Scanning Spiral scanning is a contin uous volume imagin ...

  • Siemens Software version syngo CT 2005C - page 19

    Scan and Reconstruction 19 Slice Collimation and Slice Width Slice collimatio n is the slice thicknes s resulting from the effect of the tube -side collimator and the adap tive det ector arra y design. In Multislice CT , the Z-coverage per ro t ation is given by the pr oduct of the number of active det ector slices and the collimation (e.g., 2 x 1. ...

  • Siemens Software version syngo CT 2005C - page 20

    20 Scan and Reconstruction Slice Collimation and Slice Width for Spiral Mode and HR Spiral Mode Slice Collimation and Slice Width for Sequence Mode and HR Sequence Mode 1 mm: 1, 1.25, 2, 3, 5 mm 1.5 mm: 2, 3, 5, 6 mm 2.5 mm: 3, 5, 6, 8, 10 mm 4 mm: 5, 6, 8, 10 mm 5 mm: 6, 8, 10 mm 1.0 mm: 1, 2 mm 1.5 mm: 1.5, 3 mm 2.5 mm: 2.5, 5 mm 4.0 mm: 4, 8 mm ...

  • Siemens Software version syngo CT 2005C - page 21

    Scan and Reconstruction 21 Increment The increment is the distance between the recon - struct ed images in the Z di r ection. When the increment chosen is smaller than the slice thicknes s, the images are cr eated with an o verlap. This technique is useful t o reduce partial volume effect, giving you bett er detail of the anatomy and high quality 2 ...

  • Siemens Software version syngo CT 2005C - page 22

    22 Scan and Reconstruction Pitch In single slice CT : Pitch = table movement per r otation/slice collimation E.g.,: slice collimation = 5 mm, table moves 5 mm per ro tation, then pitch = 1. With the Siemens Multislice CT , we differentiat e between: Feed/Rotation , the table movement per r otation Vo l u m e P i t c h , table movement per r otation ...

  • Siemens Software version syngo CT 2005C - page 23

    Scan and Reconstruction 23 Window values The Scale of t he CT Hounsfield U nits is fr om -1024 to +3071. The displayed windo w values have to corr espond to the anatomical structur e. Windowing is used to optimi ze contrast and brightness of images. Organ specific window values Gray scale white black CT -window values Window center C Window width W ...

  • Siemens Software version syngo CT 2005C - page 24

    24 Scan and Reconstruction Ke r n e l s There are 3 differ ent types of kernels: “H“ stands for Head, “B“ stands for Body , “C“ st ands for ChildHead. The image sharpness is defined b y the numbers – the higher the number , the sharper the imag e; the lower the number , the smoo ther the image. A set of 18 k ernels is s upplied, consi ...

  • Siemens Software version syngo CT 2005C - page 25

    Scan and Reconstruction 25 Image Filt ers There ar e 3 different filte rs available: LCE: The Low-contrast enhancement (LCE) filt er enhances low-contrast detec tability . It reduces the image noise. • Similar to reconstruction with a smoo ther kernel • Reduces noise • Enhances low-contrast detec t ability • Adjustable in four st eps • Au ...

  • Siemens Software version syngo CT 2005C - page 26

    26 Scan and Reconstruction HCE: The High-contrast enhancement (HCE) filter enhances high-contrast detec t ability . It inc reases the image sharpness, similar t o reconstruction with a sharper k ernel. • Increases sharpness • F aster than raw-data reconstruc tion • Enhances high-contrast detec tability • Automatic post-pr ocessing ASA: The ...

  • Siemens Software version syngo CT 2005C - page 27

    Scan and Reconstruction 27 Impr ov ed Head Imaging An automatic bone corr ection algorithm has been included in the st andard image reconstruction. Using a new iterativ e technique, typica l ar tifacts arising from the beam-hardening effect, e.g., Hounsfield bar , are minimized without any addi tional post-pr o cessing. This advanced algorithm allo ...

  • Siemens Software version syngo CT 2005C - page 28

    28 Dose Information CTDI W and CTDI Vol The av erage dose in the scan plane is best described by the CTDI W for the selec ted scan parameters. The CTDI W is measured in the dedicat ed plastic phantoms – 16 cm diamet er for head and 32 cm diamet er for body (as defined in IEC 60601 –2 – 44). This dose number gi ves a good estimate for the a ve ...

  • Siemens Software version syngo CT 2005C - page 29

    Dose Information 29 The CT DI vol value does not pr ovide the entire inf orma- tion of the radiation risk associated with CT examina - tion. For the purpose, the concept of the “Effec tive Dose“ was introduced b y ICRP (International Commis - sion on Radiation Pro tection). The effectiv e dose is expres sed as a weighted sum of t he dose applie ...

  • Siemens Software version syngo CT 2005C - page 30

    30 Dose Information Ef fec tive mAs In sequential scanning, the dose (Dseq) applied to the patient is the product of the tube curr ent-time (mAs) and the CTDI w per mAs: In spiral scanning, howev er , the applied dose (Dspiral) is influenced b y the “clas sical“ mAs (mA x Rot Time) and in addition by the Pitc h F actor . For exam ple, if a Mult ...

  • Siemens Software version syngo CT 2005C - page 31

    Dose Information 31 For spiral scan pro tocols, the indicated mAs is the effective mAs per image. The correlation be tween tube current mA and effectiv e mAs of spiral scans on a Mul - tislice CT scanner is given by the f o llowing f ormula: where Slice collimation refers t o the collimation of one det ector r ow, and nr ow is the number of used de ...

  • Siemens Software version syngo CT 2005C - page 32

    32 Dose Information CA R E D o s e CA RE Dose is a clinical application package that pr o - vides real-time tube curr ent modulation for Spiral and Sequential Scanning. CA RE Dose reduces patient dose significantly , espe - cially in the r egions of shoulder and pelvis. It decreases tube load, which extends the capacity f o r volume scan - ning wit ...

  • Siemens Software version syngo CT 2005C - page 33

    Dose Information 33 Example of scanning the shoulder region. Principle of C ARE Dose tube current adaption. • CARE Dose is pre-selected by default for most stan - dard pr ot ocols. It can be switched on/off in the Scan subtask card. High attenuation , high mA Low att enuation, low mA Object attenuation Modulated tube current lateral TOP time rel. ...

  • Siemens Software version syngo CT 2005C - page 34

    34 Dose Information • For the av erage patients examination, CARE Dose does not require an y manual changes to the scan prot ocol. However , the mAs must be adapt ed manu - ally for obese and pediatric patients. • The mean value of the m As applied will be lower than what you hav e selected. Although the a verage mA for the entir e scan will be ...

  • Siemens Software version syngo CT 2005C - page 35

    Dose Information 35 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 35 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 36

    36 Wo r k f l ow I n f o r m a t i o n Recon Jobs In the Recon card, y ou can define up to 3 reconstruc - tion jobs for each range with different parame ters, either befor e or after you acquire the data. When y ou deselect all c hronicle entries, all open r econ jobs will be automatically r econstructed after y ou click on “Recon“. In case you ...

  • Siemens Software version syngo CT 2005C - page 37

    Wo r k f l ow I n fo r m a t i o n 37 Examination Job S tatus Y ou can get a n overview of al l recon jobs by clicking on the recon task symbol in the status bar or selecting T ransfer – Examination Job St atus in the main menu of the Patient Browser . The Ex amination Job Status dialog will appear where all recon jobs (comple ted, queued and in ...

  • Siemens Software version syngo CT 2005C - page 38

    38 Wo r k f l ow I n f o r m a t i o n Aut o Load in 3D and Post- pr ocessing Pr esets Y ou can activat e the Auto load in 3D function on the Examination car d/ Auto T asking and link it to a recon job. For exam ple, the 2 nd recon job wit h thinner slice width in some of the ex amination pro tocols. On the 3D card y ou have the ability t o create ...

  • Siemens Software version syngo CT 2005C - page 39

    Wo r k f l ow I n fo r m a t i o n 39 How t o Creat e y our own Scan Pr ot ocols There are tw o different ways t o modify and creat e your scan pro tocols: Edit/Sa ve Scan Pro tocol If you want to modify an ex isting pro tocol or creat e a new one, e.g., y ou want to ha ve two “ AbdomenRou - tine-Pro tocols” wit h dif ferent slice width, w e re ...

  • Siemens Software version syngo CT 2005C - page 40

    40 Wo r k f l ow I n f o r m a t i o n Hints • Y ou can save yo ur scan prot ocol at any time of the examination. • It is recommended that you sa ve your own scan pr o - tocol with a ne w name in order to a void overwriting the default scan pro tocol. • Do not use special ch aracters. In addition, do not even use an y blank spaces. Allowed ar ...

  • Siemens Software version syngo CT 2005C - page 41

    Wo r k f l ow I n fo r m a t i o n 41 • Change one (or mor e) paramet ers for all Cust omer pro tocols: Select “ Edit – F ind/Replace ”. Open the “ Column “ list box and choose the desire d parameter . Selec t a new function of t his parameter in t he “ Fu n c t i o n “ list box. Under the button next to the F unction entr y you can ...

  • Siemens Software version syngo CT 2005C - page 42

    42 Wo r k f l ow I n f o r m a t i o n • Define a pro tocol as Emergency pr ot ocol. Select the desired scan pr ot ocol with the right mouse button. Select entr y “ Set as new emer gency pro tocol ”. The selec ted pro tocol is marked with a re d cro ss. • Change the structure of the pr otocol tr ee. Y ou can sor t all Customers pro tocols a ...

  • Siemens Software version syngo CT 2005C - page 43

    Wo r k f l ow I n fo r m a t i o n 43 Hints • With the Fi nd/Replace function you can easily insert an API command f or all prot ocols as needed. • Also all Auto T asking ac tions, e.g., the transfer to configured network nodes can be set within one action. Within the “Func tion” button you can set your transfer ac tions dep ending on the s ...

  • Siemens Software version syngo CT 2005C - page 44

    44 Wo r k f l ow I n f o r m a t i o n Additional Information : 1. System/Run offers the tool “Restor e Default Scan Pro - tocols“ which allow s you to remo ve user specific scan prot oc ols and to rest ore the Siemens default settings. 2. The main menu entr y “ Edit ” of fers sa ve/delet e Scan Pro tocols. 3. System/Run or the main menu en ...

  • Siemens Software version syngo CT 2005C - page 45

    Wo r k f l ow I n fo r m a t i o n 45 Contrast Medium The Basics The administration of intrav enous (IV) contrast mate - rial during spiral scanning improv es the tissue charac - terization and charac terization of lesions, as well as the opacity of ves sels. The cont rast scan will yield good results only if the acq uisition occurs during the opti ...

  • Siemens Software version syngo CT 2005C - page 46

    46 Wo r k f l ow I n f o r m a t i o n Aortic time-enhancement cur v es after i.v . contrast injection (comput er simulation*). All cur ves are based on the same patient paramet ers (male, 60-year -old, 75 kg). * R adiology 19 98; 207:647 – 655 2 ml/s, 120 ml, 300 mg I/ml 4 ml/s, 120 ml, 300 mg I/ml 80 ml, 4 ml/s, 300 mg I/ml 120 ml, 4 ml/s, 300 ...

  • Siemens Software version syngo CT 2005C - page 47

    Wo r k f l ow I n fo r m a t i o n 47 IV Injection* The administration of a contrast medium depends on the indication and on the delay times t o be used during the examination. The patients weight and circulat or y situation also play a role. In general, no mor e than 3 ml per k g of body weight f or adults and 2 ml per kg of body weight f or child ...

  • Siemens Software version syngo CT 2005C - page 48

    48 Wo r k f l ow I n f o r m a t i o n Bolus T racking This is an automatic Bolus T racki ng program, which enables triggering of the spi ral scanning at the optimal phase of the contrast enhancement. General Hints • This mode can be applied in combination with an y spiral scanning pro tocol. Simply insert “Bolus T rack - ing” by clicking the ...

  • Siemens Software version syngo CT 2005C - page 49

    Wo r k f l ow I n fo r m a t i o n 49 – Mov e the monitoring scan line towards the optimal position and release the mouse button, it will be snapped automatically . (T rick: if you move the mon - itoring scan line away from the optimal position the “snapping” mechanism will be inac tive). • Place a ROI in the pr emonitoring scan on the targ ...

  • Siemens Software version syngo CT 2005C - page 50

    50 Wo r k f l ow I n f o r m a t i o n T est Bolus using CA RE Bolus Y ou can use the CARE Bolus option as a “T est Bolus“. How t o do it 1. Inser t a Bolus tracking via the right mouse button submenu prior to t he spiral. 2. Inser t “contrast“ from the right mouse butt on con - text menu prior to the monit oring scans. Hint: By inserting ? ...

  • Siemens Software version syngo CT 2005C - page 51

    Wo r k f l ow I n fo r m a t i o n 51 T est Bolus This is a low dose sequential prot ocol without table feed used t o calculate t he star t delay of a spiral scan to ensure optimal enhancement after the contrast medium injection. The Dynamic Evaluation func tion may be used to generat e the time density cur ve. Y ou can find the “ T est Bolus“ ...

  • Siemens Software version syngo CT 2005C - page 52

    52 Wo r k f l ow I n f o r m a t i o n 6. Load the images into the Dynami c Evaluation func - tion and det ermine the time to the peak enhance - ment. Alternatively , on the image segment , click “select series” with the right mouse button and posi - tion an ROI on the firs t image. This ROI will appear on all images in the T est Bolus series. ...

  • Siemens Software version syngo CT 2005C - page 53

    Wo r k f l ow I n fo r m a t i o n 53 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 53 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 54

    54 Application Information SOMA T OM life General Information SOMA T OM life @ Y our Scanner provides actual ne ws around y our scanner , shows you helpful configuration information of y our system and enables you t o access the Siemens Extranet where y o u will find fur ther opportunities to enhance your pos sibilities to use the CT system. T o be ...

  • Siemens Software version syngo CT 2005C - page 55

    Application Information 55 Key F e a t u r e s All users: • General Inf ormation • Access t o Web Based E- T raining or Manuals on CD ROM In combination with a Siemens Remot e Ser vice con - nection: • News- Ticker a rchive and F A Q (frequently a sked q ues - tions) section • F ree trial software order and installation • Download of inf ...

  • Siemens Software version syngo CT 2005C - page 56

    56 Application Information Description All users: Start SOMA TOM life @ Y our Scanner by selecting SOMA T OM life under "options" in your syngo menu bar and you will find a br owser window that allow s you to access different info rmation about your hard- and soft - ware environ ment . Under e.g., "System Information" y ou have ...

  • Siemens Software version syngo CT 2005C - page 57

    Application Information 57 Access to Computer Based T raining or Manuals on CD ROM Start the Computer Based T raining t o learn more about your software and enhance your clinical knowledge. Note : The syngo Basics T raining is pre-installed on your system and can dir ectly be used by selecting SOMA - TOM Educat e. The syngo Advanced Application T r ...

  • Siemens Software version syngo CT 2005C - page 58

    58 Application Information SRS Based Services During the star t up of your system you will receive actual inf ormation in the "Newstick er" and see the expiration date of installed trial software. Note : Siemens will send you a Newstick er whenever there i s helpful inf ormation for CT users. The trial licenses are valid f o r 90 days and ...

  • Siemens Software version syngo CT 2005C - page 59

    Application Information 59 Download of Files Each download will be per formed in the back ground. If you disconnect y our Siemens Extranet ses sion and star t to work with the CT scanner , the do wnload will continue until it is completed. Due t o bandwidth rea - sons it is only possible to per form one download at a time. Note : Depending on y our ...

  • Siemens Software version syngo CT 2005C - page 60

    60 Application Information Downloaded Scan Pro tocols are stored in the upda te folder until installation. T o instal l all downloaded pro - tocols, choose the Scan Pr ot ocol Manager via Options/ Configuration and select "Imp ort Scan Pro tocols" in the menu tab "Scan Prot ocol". Af ter successful import, all downloaded prot oc ...

  • Siemens Software version syngo CT 2005C - page 61

    Application Information 61 Note : Every patient image will be made anon ymous befor e sending. Because the SOMA T OM life window is always in front, we recommend t o restore/ minimize it to be able to switch be tween both screens, the F ile Bro wser and t he SOMA T OM life window . C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 61 Friday, Ap ...

  • Siemens Software version syngo CT 2005C - page 62

    62 Application Information T rial Order and Installation As a SOMA T OM CT user you can r equest trial clinical software direc tly from the scanner . The req uested sof t - ware wi ll be pro vided a nd installed automatically through our Siemens Remot e Ser vices connection. After y ou hav e accessed the SOMA T OM lif e Extranet, you can choose sys ...

  • Siemens Software version syngo CT 2005C - page 63

    Application Information 63 At the same time, you ar e informed t hat you can expect the trial option t o be installed within 8 working days and yo u will then be informed about the success - ful installation via the SOMA TOM life mes sage window that appears during system star t-up. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 63 Friday, A ...

  • Siemens Software version syngo CT 2005C - page 64

    64 Application Information Image Conv er ter The CT Application Common DIC OM Adapter provides conv ersion between differ ent DIC OM data sets as they may be pr ovided by ot her CT vendors. – Y ou will find the conv er ter in the Application menu of the Patient Browser . In the pop-up window y ou can select the application for whic h you want to ...

  • Siemens Software version syngo CT 2005C - page 65

    Application Information 65 After conversion y ou can load these data sets int o the application of your ch oice. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 65 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 66

    66 Application Information File Br owser The File Brow ser pro vides the ability to acces s and to manage your cr eated files: • Copy images and files to the CD Burn folder . • Access t o all created reports and movies (A VI files). • Access t o the offline fo lder . • Access to downloaded files. Open the File Brow ser via the main menu ent ...

  • Siemens Software version syngo CT 2005C - page 67

    Application Information 67 Revie w reports and movies : – Select the desir ed f iles and double-click on them. – The corresponding prog ram, e.g., Movie Media Player will be opened and y ou can revie w what you hav e sav ed. – Now you can send these files to floppy or burn it on CD. Hint • Files with the following extensions canno t be star ...

  • Siemens Software version syngo CT 2005C - page 68

    68 Application Information Patient Pr ot ocol Scan: number of scan range kV: kilo V olt mAs: av eraged applied mAs of the range ref. mA s: quality ref. mAs of the range TI: Rotation Time cSL: collimat ed Slice CTDI vol : C TDIw Pitch F actor For further information please ref er to the chap ter “Dose Inf ormation“. DLP: Dose Length Product CTDI ...

  • Siemens Software version syngo CT 2005C - page 69

    Application Information 69 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 69 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 70

    70 Head Over view – HeadRoutine Spiral mode f or base of the skull and cer ebrum rou - tine studies – HeadSeq Sequential mode f or base of the skull and cerebrum routine studies – InnerEarHR Spiral mode f or inner ear studies with a high resolu - tion k ernel – InnerEarSeqHR Sequence mode f or inner ea r studies with a high res - olution k ...

  • Siemens Software version syngo CT 2005C - page 71

    Head 71 Hints in General • T opogram: Lateral, 256 mm. • Patient positioning: Patient lying in supine posi tion, arms resting against body , secure head well in the hea d holder , suppor t lower legs. • Gantr y tilt is av ailable for bo th, sequence and spiral scanning. Howe ver , image ar tifacts may occur if spirals ar e acquir ed with a ti ...

  • Siemens Software version syngo CT 2005C - page 72

    72 Head HeadRoutine Indications : Spiral mode for r outine head studies, e.g., stroke, brain tumors, cranial trauma, cerebral atroph y , hydroceph - alus, and inflammation, e tc. T wo ranges are predefined for the base of the skull and cerebrum. A range for t he base of 4 cm will be covered in 23 sec., a range f or the cerebrum of 8 cm will be co v ...

  • Siemens Software version syngo CT 2005C - page 73

    Head 73 Hints • An automatic bone correc tion allows for impro ved head image qu ality , without any additional post-pro - cessing. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with r espect t o the iso-center . No recon job with a field of vi ew ex ceeding those limits ...

  • Siemens Software version syngo CT 2005C - page 74

    74 Head HeadSeq Indications : Sequence mode f or routine head studies, e.g., str o ke, brain tumors, cranial trauma, cerebral atroph y , hydro - cephalus, and inflammation, etc. T wo ranges are predefined. One f or the base of the skull and one for the cer ebrum, the scan length for the entire hea d is 12.4 mm. For both ranges a typical gantr y til ...

  • Siemens Software version syngo CT 2005C - page 75

    Head 75 Hints • An automatic bone correc tion allows for impro ved head image qu ality , without any additional post-pro - cessing. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with r espect t o the iso-center . No recon job with a field of vi ew ex ceeding those limits ...

  • Siemens Software version syngo CT 2005C - page 76

    76 Head InnerEarHR Indications: Spiral mode f or inner ear High Resolution studies, e.g., inflammator y changes, tumorous processes of pyra - mids, cerebellopontine ang le tumors, post-traumatic changes, etc. A range of 2.5 cm will be cover ed in 22 sec. InnerEar 2 nd reconstr . kV 130 Effective mAs 70 Rotation time 1.5 sec Slice collimation 1.0 mm ...

  • Siemens Software version syngo CT 2005C - page 77

    Head 77 Hints • For image reconstruc tion of sof t tissue, use kernel H31s. • An automatic bone correc tion allows for impro ved head image qu ality , without any additional post-pro - cessing. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with r espect t o the iso-cent ...

  • Siemens Software version syngo CT 2005C - page 78

    78 Head InnerEarHRSeq Indications : Sequential mode fo r inner ear s tudies, e.g., inflamma - tory changes, tumorous proces ses of pyramids, cere - bellopontine angle tumors, post-traumatic changes, etc. A typical gantry tilt of -20 degree is predefined. A range of 2.5 cm will be cov ered. InnerEarSeq kV 130 Effective mAs 140 Rotation time 1.5 sec ...

  • Siemens Software version syngo CT 2005C - page 79

    Head 79 Hints • For image reconstruc tion of sof t tissue, use kernel H31s. • An automatic bone correc tion allows for impro ved head image qu ality , without any additional post-pro - cessing. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with r espect t o the iso-cent ...

  • Siemens Software version syngo CT 2005C - page 80

    80 Head Sinus Indications : Spiral mode for paranasal sinuses studies, e.g., sinusi - tis, mucocele, pneumatizatio n, polyposis, tumor , cor - rec tions etc. A range of 7 cm will be cov ered in 37 sec. Sinus 2 nd reconstr . kV 130 Effective mAs 60 Rotation time 1.0 sec Slice collimation 1.0 mm Slice width 3.0 mm 1.25 mm Feed/Rotation 2.0 mm Pitch F ...

  • Siemens Software version syngo CT 2005C - page 81

    Head 81 Hints • An automatic bone correc tion and an advanced algo- rithm al lows f or impro ved head image quality , with- out any additional post-proces sing. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with r espect t o the iso-center . No recon job with a field of v ...

  • Siemens Software version syngo CT 2005C - page 82

    82 Head SinusSeq Indications : Sequential mode f or paranasal sinuses studies, e.g., sinusitis, mucocele, pneumatiz ation, polyposis, tumor , correc tions etc. A range of 4.2 cm will be cover ed. SinusSeq kV 130 Effective mAs 120 Rotation time 1.0 sec Slice collimation 1.5 mm Slice width 3.0 mm Feed/Scan 3.0 mm Ke r n e l H70s CTDI Vol 27.32 mGy Ef ...

  • Siemens Software version syngo CT 2005C - page 83

    Head 83 Hints • An automatic bone correc tion and an advanced algo- rithm al lows f or impro ved head image quality , with- out any additional post-proces sing. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with r espect t o the iso-center . No recon job with a field of v ...

  • Siemens Software version syngo CT 2005C - page 84

    84 Head Orbita Indications : Spiral mode for orbital studies, e.g., fr acture. A range of 2 cm will be cov ered in 12 sec. Orbita 2 nd reconstr . kV 130 Effective mAs 100 Rotation time 1.0 sec Slice collimation 1.0 mm Slice width 3.0 mm 1.25 mm Feed/Rotation 2.0 mm Pitch Factor 1.0 Increment 3.0 mm 0.8 mm Ke r n e l H70s H70s CTDI Vol 22.77 mGy Eff ...

  • Siemens Software version syngo CT 2005C - page 85

    Head 85 Hints • An automatic bone correc tion and an advanced algo- rithm al lows f or impro ved head image quality , with- out any additional post-proces sing. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with r espect t o the iso-center . No recon job with a field of v ...

  • Siemens Software version syngo CT 2005C - page 86

    86 Head Dental This is the scan pro tocol fo r the syngo Dental CT appli - cation package. It is used for evaluation and ref ormat - ting of the upper and low er jaw s. It enables the displa y and measurement of the bone structures of t he upper and lower jaw as the basis f or planning in oral surgery. Indications : Spiral mode for dental studies. ...

  • Siemens Software version syngo CT 2005C - page 87

    Head 87 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 87 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 88

    88 Neck Over view – Neck Spiral mode for soft tissue routine neck studies C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 88 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 89

    Neck 89 Hints in General • T opogram: Lateral, 256 mm • Patient positioning Patient lying in supine position, hyper extend neck slightly , secure head well in head holder . • Patient respirat o r y instruction: do not br eathe, do not swallow . • For contrast studies, CARE Bolus may be used to opti - mize the bolus timing. • For image r e ...

  • Siemens Software version syngo CT 2005C - page 90

    90 Neck Body K ernels • As standard kernels f or body tissue studies B31s or B41s are recommended; softer images are obtained with B20s. • For higher sharpness, as is req uired e.g., in patient pro tocols fo r cer vical spine , shoulder , extremities, thorax, the kernels B50s, B60s, B70s a re available. • In case of 3D study only , use kernel ...

  • Siemens Software version syngo CT 2005C - page 91

    Neck 91 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 91 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 92

    92 Neck Neck Indications : For soft tissue spiral studies in the cer vical region, e.g., tumors, lymphoma, abscesses e t c. A typical range of 20 cm will be covered in 42 sec. Neck kV 130 Effective mAs 70 Rotation time 1.0 sec Slice collimation 2.5 mm Slice width 5.0 mm Feed/Rotation 5. 0 mm Pitch Factor 1.0 Increment 5.0 m m Ke r n e l B50s CTDI V ...

  • Siemens Software version syngo CT 2005C - page 93

    Neck 93 Hints • Due to its iodine cont ent, the thyr oid gland is hyper - dense in relation t o the neighboring muscles bo th befor e and after an IV CM injection. For displays of the parotid, th yroid or the floor of the mouth, the slice thickness should be < 5 mm and the length of the range should be adapt ed to match t he anatomic reg io n ...

  • Siemens Software version syngo CT 2005C - page 94

    94 Shoulder Over view – Shoulder Spiral mode for bone shoulder r outine studies C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 94 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 95

    Shoulder 95 Hints in General • T opogram: TOP , 256 m m. • Patient positioning: Patient lying in supine position, the uninjured arm placed above the head, the injur ed arm placed flat against his body . Position side under examination in the center and support the other side with a Bocollo pillow . • If only one side is examined, it is advisa ...

  • Siemens Software version syngo CT 2005C - page 96

    96 Shoulder Shoulder Indications : Spiral mode for bone studies and soft tissue, e.g., eval - uation of joint cavities, masses, trauma, dislocations, orthopedic indications etc. A scan range of 10 cm will be co vered in 35 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 96 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 97

    Shoulder 97 Hints • Use raw da ta to re view a target region if neces sar y . • For image reconstruc tion of sof t tissue, use kernel B31s and a slice width of 5.0 mm. • Coronal and sagittal 2D planar r econstructions are important for evaluation of the joint space & bursa sacs in CT ar thograms. • 3D renderings ar e helpful for complex ...

  • Siemens Software version syngo CT 2005C - page 98

    98 Thorax Over view – ThoraxRoutine/ThoraxRoutine08s Spiral mode for r outine chest studies – ThoraxFast Spiral mode f or fast chest studies – ThoraxHRSeq Sequential mode f or high resolution lung studies – LungLowDose Spiral mode with ver y low dose for early visualiza - tion of patholo gies C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book ...

  • Siemens Software version syngo CT 2005C - page 99

    Thorax 99 Hints in General • T opogram: TOP , 512 m m. • Patient positioning: Patien t lying in supine position, arms positioned comf or tably above the head in the head-arm rest, low er legs suppor ted. • Contrast medium administration: in general, IV injections are em ployed in all mediastinal examina - tions, but not in r outine high resol ...

  • Siemens Software version syngo CT 2005C - page 100

    100 Thorax • Lung images should be documented in bo th soft tis - sue window and lung window. • It is also possible to interlea ve the soft tissue & lung setting images in one film shee t. This can be set up in the configur ation for filming. • T o fur ther optimize MP R image quality , we recom - mend that you r educe one or more of the ...

  • Siemens Software version syngo CT 2005C - page 101

    Thorax 101 Body K ernels • As standard k e rnels f or body tissue studies B31s or B41s are r ecommended; softer images are obtained with B20s. • For higher sharpness, as is r equired e.g., in patient pro tocols f or cer vical spine , shoulder , extremities, thorax, the kernels B50s, B60s, B70s are available. C2-025.630.01.01.02_APPLICATIONGUIDE ...

  • Siemens Software version syngo CT 2005C - page 102

    102 Thorax ThoraxRoutine/ ThoraxRoutine08s Indications : Routine spiral studies f or the region of thorax, e .g., examination of tumors, me tast ases, lymphoma, lymph nodes, vascular anomalies etc. A range of 30 cm will be cov ered in 23/18 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 102 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 103

    Thorax 103 Hints • Y ou could repeat the same prot ocol by simply click - ing the chronicle with the right mouse butt on for “ repeat “, e.g., when both non-contrast and contrast studies are r equir ed. • For lung cancer ev aluation, this pro tocol can be com - bined with the pro tocol “Neck Routine”. ThorRoutine 2 nd reconstruction kV ...

  • Siemens Software version syngo CT 2005C - page 104

    104 Thorax ThoraxF ast Indications : F ast spiral mode for lung studies, e.g., when a patient has diff iculty with breathhold. A comple te thorax scan in a range of 30 cm will be cov - ered in 14 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 104 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 105

    Thorax 105 Hints • Y ou could repeat the same prot ocol by simply click - ing the chronicle with the right mouse butt on for “repeat“, e.g., when bo th non-contras t and contrast studies are r equir ed. • For lung cancer ev aluation, this pro tocol can be com - bined with the pro tocol “Neck Routine”. ThorF ast 2 nd reconstr . kV 130 Ef ...

  • Siemens Software version syngo CT 2005C - page 106

    106 Thorax ThoraxHRSeq Indications: Sequence mode fo r HiRes lung studies, e.g., interstitial changes in the lungs. Images are acq uired with a range o f 30.1 cm. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 106 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 107

    Thorax 107 Hints • If you want to r econstruct thin slices every 1 5 or 20 mm instead of 10 mm as predefined, simply change the F eed/Scan before loading the mode. • With studies of interstitial ch anges in the lungs, con - trast medium is not necessary. ThorHRSeq kV 130 Effect ive m As 100 Rotation time 1. 0 sec Slice collimation 1.0 mm Slice ...

  • Siemens Software version syngo CT 2005C - page 108

    108 Thorax LungLowDose Indications : Spiral lung studies wit h lo w dose se tting, e.g., early visualization of pulmonar y nodules. A typical thorax study in a range of 30 cm will be cov - ered in 32 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 108 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 109

    Thorax 109 Hints • Y ou could repeat the same prot ocol by simply click - ing the chronicle with the right mouse butt on for “repeat“ , e.g., when both non-contrast and contrast studies are r equir ed. • For lung cancer ev aluation, this pro tocol can be com - bined with the pro tocol “Neck Routine”. • Low dose lung images are usually ...

  • Siemens Software version syngo CT 2005C - page 110

    110 Abdomen Over view – AbdomenRoutine/AbdomenRoutine08s Spiral mode for routine abdominal studies – AbdomenFast Spiral mode f or fast abdominal studies – AbdMultiPhase/AbdMultiPhase08s Spiral mode f or three-pha se liver studies – AbdomenSeq Sequential mode f or abdominal studies C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 110 Fr ...

  • Siemens Software version syngo CT 2005C - page 111

    Abdomen 111 Hints in General • T opogram: TOP , 512. • Patient positioning: Patient lying in supine po sition, arms positioned comfortably above the head in the head-arm re st, lower legs supported. • Patient respirat or y i nstruction: Inspiration. • Oral administration of contrast medium: For abdominal studies, it is necessary to delineat ...

  • Siemens Software version syngo CT 2005C - page 112

    112 Abdomen • In general, for abdominal studies such as liver , gall bladder (query stones), pancreas, gastr ointestinal studies, focal lesion of the kidneys and CT A studies, it is suf ficient to use just water . Water is more effec - tive than positive oral contrast agent in depicting the linings of the stomach & intestines in post enhance ...

  • Siemens Software version syngo CT 2005C - page 113

    Abdomen 113 Body K ernels • As standard k e rnels f or body tissue studies B31s or B41s are r ecommended; softer images are obtained with B20s. • For higher sharpness, as is r equired e.g., in patient pro tocols f or cer vical spine , shoulder , extremities, thorax, lung, the k ernels B 50s, B60s, B70s are a vail - able. C2-025.630.01.01.02_APP ...

  • Siemens Software version syngo CT 2005C - page 114

    114 Abdomen AbdomenRo utine/ AbdomenRo utine08s Indications: Spiral mode f or all rout ine studies in the r egion of abdomen, e.g., evaluation, follow-up examinations etc. A typical abdomen scan in a range of 20 cm will be cover ed in 16/13 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 114 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 115

    Abdomen 115 Hints • Y ou could repeat the same prot ocol by simply click - ing the chronicle with the right mouse butt on for “ repeat “, e.g., when both non-contrast and contrast studies are r equir ed. • Delay ed scans may be required f or the kidneys & bladder . AbdRoutine kV 130 Effect ive m As 60 Rotation time 0.8/1.0 sec Slice col ...

  • Siemens Software version syngo CT 2005C - page 116

    116 Abdomen AbdomenF ast Indications : F ast spiral mode for abdominal studies, e.g., when a patient has difficulty with holding their breath. A range of 20 cm will be cov ered in 9.6 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 116 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 117

    Abdomen 117 Hint • Y ou could repeat the same prot ocol by simply click - ing the chronicle with the right mouse butt on for “repeat“, e.g., when bo th non-contras t and contrast studies are r equir ed. AbdF ast kV 130 Effect ive m As 60 Rotation time 0.8 sec Slice collimation 5.0 mm Slice width 8.0 mm Feed/Rotatio n 20.0 mm Pitch F actor 2.0 ...

  • Siemens Software version syngo CT 2005C - page 118

    118 Abdomen AbdMultiPhase / AbdMultiPhase08s Indications : Spiral scan to assist the ph ysician with differential diagnosis of liver diseases. A typical native range of 20 cm will be covere d in 15 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 118 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 119

    Abdomen 119 * CAR E Bolus may be used to optimize the bol us tim - ing. Set the ROI for monitoring scan in the abdominal aor ta at the beginning of the scan range with trigger - ing threshold of 120 HU, or use manual triggering. Non Contrast Arterial Phase Ve n o u s Phase kV 130 130 130 Effect ive m As 80 80 80 Rotation time 1.0 sec 0.8/1.0 sec 1. ...

  • Siemens Software version syngo CT 2005C - page 120

    120 Abdomen Hints • Do not administer oral co ntrast medium, as this impairs the editing of MIP/SSD/VRT images. Use water instead if necessar y . • Wat er , rather than positi ve oral contrast agents should be used. Giv e the last cup of 200 ml just prior to positioning the patient. T o ensure adequat e filling of the duodenal loop, lay the pat ...

  • Siemens Software version syngo CT 2005C - page 121

    Abdomen 121 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 121 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 122

    122 Abdomen AbdomenSeq Indications: Sequential mode f or all routine studies in the r egion of abdomen, e.g., evaluation, follow-up examinations etc. The whole scan length covers 15.2 cm. AbdSeq kV 130 Effective mAs 70 Rotation time 1.0 sec Slice collimation 4.0 mm Slice width 8.0 mm Feed/Scan 8.0 mm Ke r n e l B41s CTDI Vol 7.55 m Gy Effective dos ...

  • Siemens Software version syngo CT 2005C - page 123

    Abdomen 123 Hints • Y ou could repeat the same prot ocol by simply click - ing the chronicle with the right mouse butt on for “repeat“, e.g., when bo th non-contras t and contrast studies are r equir ed. • Wat er , rather than positi ve oral contrast agents should be used. Give the last cup 200 ml just prior positioning the patient. T o ens ...

  • Siemens Software version syngo CT 2005C - page 124

    124 Pelvi s Over view – Pelvis Spiral mode for routine soft tissue pelvis studies – Hip Spiral mode for r outine hip studies – SI_Joints Spiral mode for sacroiliac joints studies C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 124 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 125

    Pelvis 125 Hints in General • T opogram: TOP , 512 mm for pelvis studies and 256 mm for studies of the hip and SI Joints. • Patient positioning: Patient lying in supine po sition, arms positioned comfortably above the head in the head-arm re st, lower legs supported. • A breathing command is no t necessarily requir ed for the pelvic examinati ...

  • Siemens Software version syngo CT 2005C - page 126

    126 Pelvi s Pelvis Indications: Spiral mode for r outine pelvis studies, e.g., proces ses of the prostate, urinary bla dder , rectum, gynecological indications etc. A typical range of 20 cm will be covered in 12 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 126 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 127

    Pelvis 127 * If the ex amination performed requires a full urinary bladder , wait at least 3 minutes follo wing IV adminis - tration of the contrast medium. Pelvis kV 130 Effect ive m As 80 Rotation time 1.0 sec Slice collimation 5.0 mm Slice width 8.0 mm Feed/Rotatio n 20.0 mm Pitch F actor 2.0 Incremen t 8.0 mm Ke r n e l B41s CTDI Vol 8.62 mGy E ...

  • Siemens Software version syngo CT 2005C - page 128

    128 Pelvi s Hip Indications : Spiral mode for HiRes bone studies and soft tissue studies of the Hip, e .g., evaluation of joint cav ity , masses, trauma, dysplasia, necrosis of the head of the hip, congruence evaluatio ns, orthopedic indications etc. A typical range of 10 cm will be covered in 35 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.boo ...

  • Siemens Software version syngo CT 2005C - page 129

    Pelvis 129 Hints • In case of 3D study on ly , images should be recon - struct ed with at least 50% o verlap in image recon - struction and kernel B20s. • If only one side is examined, it is advisable to enter the side in the comment line on the Routine card. Hip 2 nd reconstr . kV 130 Effect ive m As 70 Rotation time 1. 0 sec Slice collimation ...

  • Siemens Software version syngo CT 2005C - page 130

    130 Pelvi s SI_Joints Indications : Spiral mode for bone studies of the sacroiliac joints. A typical range of 8 cm will be cover ed in 18 sec. SI_Joints 2 nd reconstruction kV 130 Effective mAs 80 Rotation time 1.0 sec Slice collimation 2.5 mm Slice width 3.0 mm 3.0 mm Feed/Rotation 5.0 mm Pitch Factor 1.0 Increment 3.0 mm 2. 0 mm Ke r n e l B70s B ...

  • Siemens Software version syngo CT 2005C - page 131

    Pelvis 131 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 131 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 132

    132 Spine Over view – C-Spine Spiral mode for cervical spine studies – C-SpineSeq Sequential mode f or ce r vical spine studies – Spine Spiral mode for r outine lumbar and thoracic spine studies – SpineSeq Sequential mode f or lumbar and thoracic evaluation of the discs – Osteo Sequential mode used for the application syngo Osteo CT C2-02 ...

  • Siemens Software version syngo CT 2005C - page 133

    Spine 133 Hints in General • T op ogram: Lateral, 512 mm for thoracic and lumbar spine and 256 mm for the C-spine. • Patient positioning for thoracic and lumbar spine studies: Patient lying in supine po sition, arms positioned comfortably above the head in the head-arm re st, lower legs supported. • Patient positioning for cer vical spine stu ...

  • Siemens Software version syngo CT 2005C - page 134

    134 Spine • The CT scan follo wing my elography must be per - for me d w it hi n 4 – 6 hours of the in jection, ot her - wise, the contrast density in the spinal canal will be too high t o obtain ar tifact-fre e images. Also, if possi - ble, it is a good idea to r oll the patient once, or scan in a prone position. This will prev ent the contras ...

  • Siemens Software version syngo CT 2005C - page 135

    Spine 135 Body K ernels • As standard k e rnels f or body tissue studies B31s or B41s are r ecommended; softer images are obtained with B20s. • For higher sharpness, as is r equired e.g., in patient pro tocols f or cer vical spine , shoulder , extremities, thorax, lung, the k ernels B 50s, B60s, B70s are a vail - able. C2-025.630.01.01.02_APPLI ...

  • Siemens Software version syngo CT 2005C - page 136

    136 Spine C-Spine Indications : Spiral mode for cervical spi ne studies, e.g., prolapse, degenerative changes, trauma , tumors etc. A range of 15 cm will be cov e red in 52 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 136 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 137

    Spine 137 C-Spine 2 nd recons tr . kV 130 Effect ive m As 90 Rotation time 1. 0 sec Slice collimation 1.5 mm Slice width 3.0 mm 2. 0 mm Feed/Rotatio n 3.0 mm Pitch F actor 1.0 Incremen t 3.0 mm 1. 5 mm Ke r n e l B50s B5 0s CTDI Vol 9.70 mGy Effec tive d ose Male: 2.02 mSv Fema le: 2.07 mSv C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 137 ...

  • Siemens Software version syngo CT 2005C - page 138

    138 Spine C-SpineSeq Indications : Sequential mode f or cer vical spine studies, e.g., pro - lapse, degenerative changes, trauma, tumors, etc. with a typical length f or each range of 1.2 cm. This pro tocol contains five ranges: C2-C3, C3-C4, C4-C5, C5-C6, C6-C7 C2-3 C3-4 C4-5 kV 130 130 130 Effective mAs 170 170 170 Rotation time 1.5 sec 1.5 sec 1 ...

  • Siemens Software version syngo CT 2005C - page 139

    Spine 139 Hints • Dental artifacts can be reduced by tilting the g antr y . • For MPRs and 3D post-pr ocessing, use spiral mode with thinner slice and reconstruct images with 50% ov erlap in image reconstruct ion. Define a long range to cov er the levels of inter est in one block. C5-6 C6-7 kV 130 130 Effect ive m As 17 0 190 Rotation time 1.5 ...

  • Siemens Software version syngo CT 2005C - page 140

    140 Spine Spine Indications : Spiral mode for thoracic and lumbar spine studies, e.g., prolapse, degenerative changes, trauma, tumors etc. A range of 15 cm will be covered in 48 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 140 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 141

    Spine 141 Spine 2 nd reconstruction kV 130 Effect ive m As 120 Rotation time 1.5 sec Slice collimation 2.5 mm Slice width 3.0 mm 3.0 mm Feed/Rotatio n 5.0 mm Pitch F actor 1.0 Incremen t 3.0 mm 2.0 mm Ke r n e l B31s B60 s CTDI Vol 12.94 mGy Effec tive d ose Male: 2.94 mSv Fema le : 6.75 mSv C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 141 ...

  • Siemens Software version syngo CT 2005C - page 142

    142 Spine SpineSeq Indications : Sequence mode for spine studies, e.g., prolapse, degenerative changes, trauma, tumors e tc. with a typ - ical length f or each rang e of 1.5 cm. This pro tocol contains three ranges: L3-4, L4-L5, L5-S1 Three different typical gant r y tilts are pr edefined: for L3-L4: 0°, f or L4-L5: + 5° and for L5-S1: +15° C2-0 ...

  • Siemens Software version syngo CT 2005C - page 143

    Spine 143 L3-4 L4-5 L5-S1 kV 130 130 130 Effect ive m As 220 220 235 Rotation time 1.5 sec 1.5 sec 1.5 sec Slice collimation 1.5 mm 1.5 mm 1.5 mm Slice width 3. 0 mm 3.0 mm 3.0 mm Feed/Scan 3.0 mm 3.0 mm 3.0 mm Ke r n e l B31s B31 s B31s CTDI Vol 23.72 mGy 23.72 mGy 25.33 mGy Effec tive d ose Male: 0.58 mSv Fema le: 0.92 mSv Male: 0.63 mSv Fema le: ...

  • Siemens Software version syngo CT 2005C - page 144

    144 Spine Ost eo This is the scan pro tocol fo r the syngo Osteo CT appli - cation package t o assist the Physician with the q uanti - tative as sessment of vert ebral bone mineral density (BMD) in the diagnosis and f ollow-up of osteopenia and osteoporosis. For obese patients, increase the mAs value to 120. Load all ranges in the application “ s ...

  • Siemens Software version syngo CT 2005C - page 145

    Spine 145 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 145 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 146

    146 Upper Extremities Over view – Wri s tH R Spiral mode for r outine high resolution wrist studie s – ExtrRoutineHR Spiral mode for r outine high resolution extr emity studies C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 146 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 147

    Upper Extremities 147 Hints in General • T opogram: TOP , 256 mm for joint studies. • Patient positioning: Depends on the region of examination. In general, f or bilateral studies, you should alwa ys tr y to position the patient symme trical whenever the patient can comply . For wrists and elbow scans: Patient lying in prone position , hands st ...

  • Siemens Software version syngo CT 2005C - page 148

    148 Upper Extremities Body K ernels • As standard kernels f or body tissue studies B31s or B41s is recommended; softer imag es are obtained with B20s. • For higher sharpness, as is req uired e.g., in patient pro tocols fo r cer vical spine , shoulder , extremities, thorax, lung, the k ernels B50s, B60s, B70s are a vail - able. C2-025.630.01.01. ...

  • Siemens Software version syngo CT 2005C - page 149

    Upper Extremities 149 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 149 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 150

    150 Upper Extremities Wr i s t H R Indications : Spiral mode for HiRes bone study of the wrist, e.g., trauma, or thopedic indications etc. A range of 6 cm will be cov ered in 32 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 150 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 151

    Upper Extremities 151 Hint • For image reconstruc tion of sof t tissue, use kernel B31s. Wr istHR 2 nd reconstruction kV 130 Effect ive m As 30 Rotation time 1.0 sec Slice collimation 1.0 mm Slice width 2.0 mm 1.25 mm Feed/Rotatio n 2.0 mm Pitch F actor 1.0 Incremen t 2.0 mm 0.8 mm Ke r n e l U90s U90s CTDI Vol 3.23 m Gy Effec tive d ose Male: &l ...

  • Siemens Software version syngo CT 2005C - page 152

    152 Upper Extremities ExtrRoutineHR Indications : Spiral mode for HiRes bone study , e.g., trauma, or tho - pedic indications etc. A range of 10 cm will be cov e red in 52 sec. Hint • For image reconstruction of soft tissue, use k ernel B31s. ExtrHR 2 nd reconstruction kV 130 Effective mAs 30 Rotation time 1.0 sec Slice collimation 1.0 mm Slice w ...

  • Siemens Software version syngo CT 2005C - page 153

    Upper Extremities 153 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 153 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 154

    154 Low er Extremities Over view – KneeHR Spiral mode for hig h resolution r outine knee studies – FootHR Spiral mode for hig h resolution r outine foo t studies – ExtrRout ineHR Spiral mode for hig h resolution r outine extr emity studies C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 154 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 155

    Low er Extremities 155 Hints in General • T opogram: TOP , 256 mm for joint studies. • Patient positioning: Depends on the region of examination. In general, for bilat eral studies, you should alwa ys try to posi - tion the patient symmetrical whenev er the patient can comply . • For knee scan: Patient lying in supine position, feet fi r s t, ...

  • Siemens Software version syngo CT 2005C - page 156

    156 Low er Extremities Body K ernels • As standard kernels f or body tissue studies B31s or B41s is recommended; softer imag es are obtained with B20s. • For higher sharpness, as is req uired e.g., in patient pro tocols fo r cer vical spine , shoulder , extremities, thorax, lung, the k ernels B50s, B60s, B70s are a vail - able. • In case of 3 ...

  • Siemens Software version syngo CT 2005C - page 157

    Low er Extremities 157 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 157 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 158

    158 Low er Extremities KneeHR Indications : Spiral mode for high r esolution studies of the knee, e.g., masses, trauma, disor ders of the joint etc. A range of 10 cm will be cov e red in 52 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 158 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 159

    Low er Extremities 159 Hint • For image reconstruc tion of sof t tissue, use kernel B31s. KneeHR 2 nd reconstruction kV 130 Effect ive m As 35 Rotation time 1.0 sec Slice collimation 1.0 mm Slice width 3. 0 mm 1.25 mm Feed/Rotatio n 2.0 mm Pitch F actor 1.0 Incremen t 3.0 mm 0.8 mm Ke r n e l U90s U90s CTDI Vol 3.77 mGy Effec tive d ose Male: 0.0 ...

  • Siemens Software version syngo CT 2005C - page 160

    160 Low er Extremities FootHR Indications : Spiral mode for high r esolution studies of the fo ot, e.g., masses, trauma, disor ders of the joint etc. A range of 10 cm will be cov e red in 52 sec. Hint • For image reconstruction of soft tissue, use k ernel B31s. FootHR 2 nd reconstruction kV 130 Effective mAs 30 Rotation time 1.0 sec Slice collima ...

  • Siemens Software version syngo CT 2005C - page 161

    Low er Extremities 161 ExtrRoutineHR Indications : Spiral mode for HiRes bone study , e.g., trauma, or tho - pedic indications etc. A range of 10 cm will be co vere d in 52 sec. Hint • For image reconstruc tion of sof t tissue, use kernel B31s. ExtrHR 2 nd reconstruction kV 130 Effect ive m As 30 Rotation time 1.0 sec Slice collimation 1.0 mm Sli ...

  • Siemens Software version syngo CT 2005C - page 162

    162 Va s c u l a r Over view – HeadAngio/HeadAngio08s Spiral mode for head CT Angio studies – CarotidAngio/Car otidAngio08s Spiral mode for car otid CT Angio studies – ThorAngi o/ThorAngio0 8s Spiral mode f or chest CT Angio studies – Embolism Spiral mode for pulmonary embolism studies – BodyAngioRoutine/B odyAngioRoutine08s Spiral mode f ...

  • Siemens Software version syngo CT 2005C - page 163

    Va s c u l a r 163 Hints in General • T opogram: TOP , 512/1024 or L A T 256 • Patient positioning: Patient lying in supine po sition, arms positioned comfortably above the head in the head-arm re st, lower legs supported. • Patient respirat or y i nstructions: inspiration. • Oral administration of contrast medium: The use of water will no ...

  • Siemens Software version syngo CT 2005C - page 164

    164 Va s c u l a r HeadAngio/HeadAngio08s Indications : Spiral mode for cer ebral CT Angios, e.g., cer ebral vas - cular abnormalities, tumors and f ollow-up s tudies etc. A range of 6 cm will be cov ered in 32/26 sec. HeadAngio 2 nd reconstruction kV 130 Effective mAs 50 Rotation time 0.8/ 1.0 sec Slice collimation 1.0 mm Slice width 3.0 mm 1.25 m ...

  • Siemens Software version syngo CT 2005C - page 165

    Va s c u l a r 165 Hints • Use of C ARE Bolus with monitoring scans positioned at the lev el of the basilar arter y or caro tid ar ter y . Set the trigger threshold at 120 HU , or use manual trig - geri ng. • An automatic bone correc tion and an advanced algo - rithm allo w for impr oved head image quality , with - out any additional post-proce ...

  • Siemens Software version syngo CT 2005C - page 166

    166 Va s c u l a r Car otidAngio/Car otidAngio08s Indications : Noninvasiv e CT angiography of carotid st enosis or occlusions, plaques course abnormalities of the caro tids and vertebral ar teries, etc. A range of 12 cm will be cov e red in 32/26 sec. CarotidAngio 2 nd reconstruction kV 130 Effective mAs 55 Rotation time 0.8/1.0 sec Slice collimat ...

  • Siemens Software version syngo CT 2005C - page 167

    Va s c u l a r 167 Hints • C ARE Bolus may be used t o optimize the bolus tim - ing. • Set the ROI f or monitoring scan in the aor tic arch with triggering threshold of 1 20 HU, or use manual triggering. • High quality 2D & 3D post-processing can be achiev ed using a thin slice thickness and 50% over - lap in image reconstruction. • MPR ...

  • Siemens Software version syngo CT 2005C - page 168

    168 Va s c u l a r ThorAngio/ThorAngio08s Indications : Spiral study for loca tion a nd extent of aneurysms, dis - section, and ruptur es of the thoriac aor ta. A range of 20 cm will be cov e red in 24/19 sec. ThorAngio 2 nd reconstruction kV 130 Effective mAs 55 Rotation time 0.8/1. 0 sec Slice collimation 2.5 mm Slice width 5.0 mm 3.0 mm Feed/Rot ...

  • Siemens Software version syngo CT 2005C - page 169

    Va s c u l a r 169 Hints • C ARE Bolus may be used t o optimize the bolus tim - ing. • Set the ROI f or monitoring scan in the aor tic arch with triggering threshold of 1 20 HU, or use manual triggering. • High quality 2D & 3D post-processing can be achiev ed using a thin slice thickness and 50% over - lap in image reconstruction. • Thi ...

  • Siemens Software version syngo CT 2005C - page 170

    170 Va s c u l a r Embolism Indications : Spiral mode f or Pulmonary Emboli studies. A range of 15 cm will be cov e red in 24 sec. Embolism 2 nd reconstruction kV 130 Effective mAs 55 Rotation time 0.8 sec Slice collimation 1.5 mm Slice width 3.0 mm 2.0 mm Feed/Rotation 5.4 mm Pitch Factor 1.8 Increment 3.0 mm 1.5 mm Ke r n e l B31s B31s CTDI Vol 5 ...

  • Siemens Software version syngo CT 2005C - page 171

    Va s c u l a r 171 Hints • C ARE Bolus may be used t o optimize the bolus tim - ing. • Set the ROI f or monitoring scan in the pulmonar y trunk with triggering threshold of 120 HU, or use manual triggering. • Y ou could repeat the same prot ocol by simply click - ing the chronicle with the right mouse butt on for "repeat". Contrast ...

  • Siemens Software version syngo CT 2005C - page 172

    172 Va s c u l a r BodyAngioRoutine/ BodyAngioRoutine08s Indications : Spiral mode f or abdominal CT A studies. A range of 20 cm will be cov e red in 39/31 sec. . BodyAngio 2 nd reconstruction kV 130 Effective mAs 55 Rotation time 0.8/1.0 sec Slice collimation 1.5 mm Slice width 5.0 mm 3.0 mm Feed/Rotation 5.4 mm Pitch Factor 1.8 Increment 5.0 mm 2 ...

  • Siemens Software version syngo CT 2005C - page 173

    Va s c u l a r 173 Hints • C ARE Bolus may be used t o optimize the bolus tim - ing. • Set the ROI f or monitoring scan in the abdominal aort a with triggering thre shold of 120 HU, or use manual triggering. • Do not administ er oral co ntrast medium, as this impairs the editing of MIP/SSD/VRT images. • Use wat er as oral contrast. • The ...

  • Siemens Software version syngo CT 2005C - page 174

    174 Va s c u l a r BodyAngioF ast Indications : Spiral mode for longer co verage and lar ger vessels. A range of 20 cm will be cov e red in 18 sec. BodyAngio 2 nd reconstruction kV 130 Effective mAs 55 Rotation time 0.8 sec Slice collimation 2.5 mm Slice width 5.0 mm 3.0 mm Feed/Rotation 10.0 mm Pitch Factor 2.0 Increment 5.0 mm 2.0 mm Ke r n e l B ...

  • Siemens Software version syngo CT 2005C - page 175

    Va s c u l a r 175 Hints • C ARE Bolus may be used t o optimize the bolus tim - ing. • Set the ROI f or monitoring scan in the abdominal aort a with triggering thre shold of 120 HU, or use manual triggering. • Do not administ er oral co ntrast medium, as this impairs the editing of MIP/SSD/VRT images. • Use wat er as oral contrast. • The ...

  • Siemens Software version syngo CT 2005C - page 176

    176 Specials Over view The examination pr otocols designed for some of these applications are under t he “Special” folder . Tr a u m a In any trauma situation, time means lif e and the qual - ity of lif e for the survivor . In order to facilitat e the examinations, two pr otocols a re pr ovided. – PolyT rauma : This is a combined mode for the ...

  • Siemens Software version syngo CT 2005C - page 177

    Specials 177 Tr a u m a In any trauma situation, ti me means life and the qual - ity of lif e for t he sur vivor . This is a combined mode for the examinatio n of multi - ple ranges, e.g., Head, Neck, Thorax, Abdomen and Pelvis. The Basics • Check that the emergency drug trolley is well stock ed and that all accessories such as in-r oom oxy - gen ...

  • Siemens Software version syngo CT 2005C - page 178

    178 Specials PolyT raum a T wo times 2 combined recon jobs are predefined, head with neck and t horax with abdomen. A range f or the Head of 11 cm will be cover ed in 20 sec., a range for the Neck of 14 cm will be cov ered in 30 sec. T a ke a new T opogram for the thorax and abdomen ranges. Head Neck kV 130 130 Effective mAs 110 90 Rotation time 1. ...

  • Siemens Software version syngo CT 2005C - page 179

    Specials 179 A range f or the Thorax of 25 cm will be cov ered in 15 sec., a range for the AbdPelvis of 20 cm will be cov - ered in 12 sec. • For long range scanning, pl ease pa y attention t o the mark of scannable range on the table mattress while positioning the patient. • In some cases, it might be advisable to position the patient fee t fi ...

  • Siemens Software version syngo CT 2005C - page 180

    180 Specials HeadT rauma A spiral mode for emer gency head studies with a max. FoV of 500 mm. A typical scan range of 40/80 cm will be cov ered in 23/27 sec. Base Cerebrum kV 130 130 Effective mAs 110 110 Rotation time 1.5 sec 1.0 sec Slice collimation 1.5 mm 2.5 mm Slice width 3.0 mm 8.0 mm Feed/Rotation 3.0 mm 5.0 mm Pitch Factor 1.0 1.0 Incremen ...

  • Siemens Software version syngo CT 2005C - page 181

    Specials 181 Inter ventional CT T o facilitate CT inter ventional procedures, the follow - ing pro tocols are pr ovided. Any of these pr otocols can be appended to a spiral pr otocol f or CT interventional procedures, such as biopsy , abscess drainage, pain therapy , minimum invasive operations, joint studies, and ar thrograms. Adjust the mAs accor ...

  • Siemens Software version syngo CT 2005C - page 182

    182 Specials Biopsy Indications: This is the conv entional sequential mode without table feed using a 10 mm slice. Hint This pro tocol can be appended to a spiral pro tocol for CT interventional procedur es, such as biopsy , abscess drainage, pain therapy , minimum invasive operations, joint studies, and arthrograms. Biopsy kV 130 Effective mAs 80 ...

  • Siemens Software version syngo CT 2005C - page 183

    Specials 183 Te s t B o l u s Indications : This mode can be used to test the start delay of an opti - mal enhancement after the contrast medium injec - tion. Te s t B o l u s kV 80 Effect ive m As 110 Rotation time 1.0 sec Slice collimation 5.0 mm Slice width 10.0 mm Feed/Scan 0.0 mm Ke r n e l B31s CTDI Vol 3.03 mGy C2-025.630.01.01.02_APPLICATIO ...

  • Siemens Software version syngo CT 2005C - page 184

    184 Children Over view The scan pro tocols for childr en are defined accor ding to body regions – Head, Neck, Shoulder , Thorax, Abdo - men, Pelvi s, Spine, Upper Extr emities, Lower Extremi - ties, V ascular , Specials and P rivate. For childr en six (6) years and older , use the adult pro - toc ol s . Whenev er possible, 80 kV is used instead o ...

  • Siemens Software version syngo CT 2005C - page 185

    Children 185 • Head – HeadRoutine_Baby Spiral mode for routine baby head studies – HeadRoutine_Child Spiral mode for routine children head studies – HeadSeq_Baby Sequential mode f or routine baby head studies – HeadSeq_Child Sequential mode f or routine childr en head studies – InnerEar Spiral mode for inner ear studies – SinusOrbi Sp ...

  • Siemens Software version syngo CT 2005C - page 186

    186 Children • Spine – Spine_Baby Spiral mode f or routine bab y spine studies – Spine_Child Spiral mode for r outine children spine studies • Extremities – ExtrHR_Baby Spiral mode for r outine baby high resolution ext remi ty s tu di es – ExtrHR_Child Spiral mode f or routine c hildren high r esolution ext remi ty s tu di es • Va s c ...

  • Siemens Software version syngo CT 2005C - page 187

    Children 187 Hints in General 1. T opograms: 256 mm lateral topograms are defined for the head modes, and 512 mm T OP topograms are defined fo r the body modes. Please k eep in mind that the children’s size can be dramatically different. Y o u should press the “Hold Measur ement“ button wheneve r the range shown on t he real-time g row - ing ...

  • Siemens Software version syngo CT 2005C - page 188

    188 Children The proper personnel and equipment must also be readily a vailable in the ev ent of a problem. 6. Oral and rec tal contrast adminis tration: Depending on the reaso n for the e xam/status of the patient, oral contrast may or ma y not be given t o these patients. In general, oral contrast is recommended to opacify the intestinal trac t, ...

  • Siemens Software version syngo CT 2005C - page 189

    Children 189 It is recommended t o use C ARE Bolus in order to achieve op timal cont rast enhancement. Both star t delay ti me and injection rat e are exam-/ patient-dependent. Whenever pos sibl e, I.V . injection with a power inject or is recommended fo r all scans . S o m e g u i d e l i n e s t o f o l l o w w i t h r e s p e c t t o f l o w r a ...

  • Siemens Software version syngo CT 2005C - page 190

    190 Children Head K ernels • For head scans of small children, the k ernels C20s, C30s (e.g., for soft tissue studies) and C60s (e.g., for sinuses are pro vided) should be chosen instead of the ”adult” head k ernels H21s, H31s and H60s. • For the standard head pro tocols, we recommend C20s and C30s. • High resolution head studies should b ...

  • Siemens Software version syngo CT 2005C - page 191

    Children 191 Body K ernels • As standard k e rnels f or body tissue studies B31s or B41s is recommended; sof ter images are obtained with B20s. • For higher sharpness, as is r equired e.g., in patient pro tocols f or cer vical spine , shoulder , extremities, thorax, the kernels B50s, B60s, B70s are available. The special k ernels are mostly use ...

  • Siemens Software version syngo CT 2005C - page 192

    192 Children HeadRoutine_Baby Indications : Routine head spiral studies, e.g., brain tumors, cranial trauma, hydr ocephalus, hemorrhaging and other abnormalities etc. A range of 8 cm will be covered in 27 sec. * The conversion fac tor f or an 8-week -old child, and a scan range of 80 mm was used. Head kV 80 Effective mAs 122 Rotation time 1.5 sec S ...

  • Siemens Software version syngo CT 2005C - page 193

    Children 193 Hints • Use this pro tocol for childr en below 6 months of age. • When bone structure is of inter est, use kernel C60s for image r econstruction. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with r espect t o the iso-center . No recon job with a field of v ...

  • Siemens Software version syngo CT 2005C - page 194

    194 Children HeadRoutine_Child Indications : Routine head spiral studies, e.g., brain tumors, cranial trauma, hydr ocephalus, hemorrhaging and other abnormalities etc. A range of 8 cm will be cov ered in 27 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 80 mm was used. Head kV 130 Effective mAs 60 Rotation time 1.5 sec ...

  • Siemens Software version syngo CT 2005C - page 195

    Children 195 Hints • Children, who a re more tha n 6 years old, should be scanned with an adult prot ocol as the skull by this time is fully grown. • When bone structure is of int erest, use k ernel C60s for image r econstruction. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of ...

  • Siemens Software version syngo CT 2005C - page 196

    196 Children HeadSeq_Baby Indications : Sequential mode for routine head studies for children, e.g., tumors, hydrocephalu s, hemorrhaging, abnor - malities, e tc. A range of 8.25 cm is predefined. * The conversion fac tor f or an 8-week -old child, and a scan range of 82.5 mm was used. HeadSeq kV 80 Effective mAs 250 Rotation time 1.5 sec Slice col ...

  • Siemens Software version syngo CT 2005C - page 197

    Children 197 Hints • Use this pro tocol for childr en below 6 months of age. • When bone structure is of inter est, use kernel C60s for image r econstruction. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with respect t o the iso-center . No recon job with a field of vi ...

  • Siemens Software version syngo CT 2005C - page 198

    198 Children HeadSeq_Child Indications : Sequential mode for routine head studies for children, e.g., tumors, hydrocephalu s, hemorrhaging, abnor - malities, e tc. A range of 8.25 cm is predefined. * The conversion fac tor f or a 7-year -old child, and a scan range of 82.5 mm was used. HeadSeq kV 130 Effective mAs 120 Rotation time 1.5 sec Slice co ...

  • Siemens Software version syngo CT 2005C - page 199

    Children 199 Hints • Children, who a re more tha n 6 years old, should be scanned with an adult prot ocol as the skull by this time is fully grown. • When bone structure is of int erest, use k ernel C60s for image r econstruction. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of ...

  • Siemens Software version syngo CT 2005C - page 200

    200 Children InnerEar Indications : High Resolution Spiral mode f or inner ear studies, e.g., malf ormations of the inner ear , inflammatory changes, pathologies of the mastoid proces s, tumor proces ses of the pyramids, post-traumatic changes, etc. A range of 2.5 cm will be co vered in 22 sec. * The conversion fac tor f or a 7-year -old child, and ...

  • Siemens Software version syngo CT 2005C - page 201

    Children 201 Hints • Children, who a re more tha n 6 years old, should be scanned with an adult prot ocol as the skull by this time is fully grown. • When soft tissue is of inter est, use k ernel H31s for image reconstruction. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 ...

  • Siemens Software version syngo CT 2005C - page 202

    202 Children SinusOrbi Indications : Spiral mode for r outine spiral studies of the sinuses and paranasal sinuses, e.g., sinusitis, pneumatization, polyposis, malf ormations, tumors etc. A range of 4 cm will be covered in 22 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 40 mm was used. SinusOrbi 2 nd reconstruction kV ...

  • Siemens Software version syngo CT 2005C - page 203

    Children 203 Hints • Children, who a re more tha n 6 years old, should be scanned with an adult prot ocol. • In order t o optimize image quality v ersus radiation dose, scans are provided wit hin a maximum scan field of 300 mm with respect t o the iso-center . No recon job with a field of vi ew ex ceeding those limits will be possible. Ther efo ...

  • Siemens Software version syngo CT 2005C - page 204

    204 Children Neck Indications : Spiral mode for r outine neck studies, e.g., tumors, lym - phoma, abscesses, e tc. A range of 15 cm will be cov e red in 19 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 150 mm was used. Neck kV 130 Effective mAs 26 Rotation time 1.0 sec Slice collimation 2.5 mm Slice width 5.0 mm Feed/R ...

  • Siemens Software version syngo CT 2005C - page 205

    Children 205 Hints • If necessary , scan down t o the aortic arch or medi - astinum to include the entire lesion. • Cooperative childr en can be instructed to hold their breath during the acq uisition. • Children, who a re more tha n 6 years old should be scanned with an adult prot ocol. • Please change the mAs value according t o the age o ...

  • Siemens Software version syngo CT 2005C - page 206

    206 Children ThoraxRoutine_Baby Indications : Spiral mode f or routine t horax studies, e.g., pneumo - nia, tumors, metastases, lymphoma, vascular abnor - malities e tc. A range of 15 cm will be covered in 17 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 206 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 207

    Children 207 * The conv ersion fact or for an 8-week -old child, and a scan range of 150 mm was used. Hints • Use this pr otocol f or children below 35 k g. • The first and second recon jobs are defined for visu - alization of the mediastinum and the lungs, respec - tively . • Please change the mAs value according t o the weight of t he child ...

  • Siemens Software version syngo CT 2005C - page 208

    208 Children ThoraxRoutine_Child Indications : Spiral mode f or routine t horax studies, e.g., pneumo - nia, tumors, metastases, lymphoma, vascular abnor - malities e tc. A range of 15 cm will be covered in 17 sec. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 208 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 209

    Children 209 * The conversion fact or for a 7-year -o ld child, and a scan range of 150 mm was used. Hints • Children with a body weight of more than 55 k g should be examined with an adult pr ot ocol. • The first and second recon jobs are defined for visu - alization of the mediastinum and the lungs, respec - tively . • Please change the mAs ...

  • Siemens Software version syngo CT 2005C - page 210

    210 Children ThoraxHRSeq_Baby Indications : Sequence mode f or High Reso lution lung studies, e.g., interstitial changes of the lung parench yma, etc. A range of 20.1 cm is predefined. * The conversion fac tor f or an 8-week -old child, and a scan range of 201 mm was used. ThorHRSeq kV 80 Effective mAs 90 Rotation time 1.0 sec Slice collimation 1.0 ...

  • Siemens Software version syngo CT 2005C - page 211

    Children 211 Hints • Use this pr otocol f or children below 35 k g. • If you want t o acquire the patient at full inspiration or full expiration, y ou should practice the br eathing with the patient a fe w times before beginning the scan, so that repr oducibility may be impr oved. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 211 Friday ...

  • Siemens Software version syngo CT 2005C - page 212

    212 Children ThoraxHRSeq_Child Indications : Sequence mode f or High Reso lution lung studies, e.g., interstitial changes of the lung parench yma, etc. A range of 20.1 cm is predefined. * The conversion fac tor f or a 7-year -old child, and a scan range of 201 mm was used. ThorHRSeq kV 130 Effective mAs 70 Rotation time 1.0 sec Slice collimation 1. ...

  • Siemens Software version syngo CT 2005C - page 213

    Children 213 Hints • Children with a body weight of more than 55 k g should be examined with an adult pr ot ocol. • If you want t o acquire the patient at full inspiration or full expiration, y ou should practice the br eathing with the patient a fe w times before beginning the scan, so that repr oducibility may be impr oved. C2-025.630.01.01.0 ...

  • Siemens Software version syngo CT 2005C - page 214

    214 Children Abdomen_B ab y Indications: Spiral mode f or routine studi es in the r egion of abdo - men and pelvis, e.g., tumors, lymphoma, abscesses, post-traumatic changes, etc. A range of 30 cm will be cov e red in 32 sec. * The conversion fac tor f or an 8-week -old child, and a scan range of 300 mm was used. Abdomen kV 80 Effective mAs 41 Rota ...

  • Siemens Software version syngo CT 2005C - page 215

    Children 215 Hints • Use this pr otocol f or children below 35 k g. • Delay ed scans may be required f or the kidneys and bladder . • Rectal contrast ma y be requir ed for e valuation of pel - vic mass. • Please change the mAs value according t o the weight of t he child: 25 – 34 kg 70 mAs. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book ...

  • Siemens Software version syngo CT 2005C - page 216

    216 Children Abdomen_C hild Indications: Spiral mode f or routine studi es in the r egion of abdo - men and pelvis, e.g., tumors, lymphoma, abscesses, post-traumatic changes, etc. A range of 30 cm will be cov e red in 32 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 300 mm was used. Abdomen kV 130 Effective mAs 41 Rota ...

  • Siemens Software version syngo CT 2005C - page 217

    Children 217 Hints • Delay ed scans may be required f or the kidneys and bladder . • Rectal contrast ma y be requir ed for e valuation of pel - vic mass. • Children with a body weight of more than 55 k g should be examined with an adult pr otocol. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 217 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 218

    218 Children Spine_Baby Indications : Spiral mode for spine stud ies, e.g., post-traumatic changes, tumors, malformations, or thopedic indica - tions, etc. A range of 15 cm will be covered in 32 sec. * The conversion fac tor f or an 8-week -old child, and a scan range of 150 mm was used. Spine 2 nd reconstruction kV 80 Effective mAs 110 Rotation ti ...

  • Siemens Software version syngo CT 2005C - page 219

    Children 219 Hints • Use this pr otocol f or children below 35 k g. • Please change the mAs value according t o the weight of t he child: 25 – 34 kg 160 mAs. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 219 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 220

    220 Children Spine_Child Indications : Spiral mode for spine stud ies, e.g., post-traumatic changes, tumors, malformations, or thopedic indica - tions, etc. A range of 15 cm will be covered in 32 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 150 mm was used. Spine 2 nd reconstruction kV 130 Effective mAs 70 Rotation ti ...

  • Siemens Software version syngo CT 2005C - page 221

    Children 221 Hint • Children with a body weight of more than 55 k g should be examined with an adult pr otocol. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 221 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 222

    222 Children ExtrHR_Baby Indications : Spiral mode f or high r esolution extr emity studies, e.g., post-traumatic changes, tumors, m alformations, etc. A range of 10 cm will be covered in 27 sec. * The conversion fac tor f or an 8-week -old child, and a scan range of the knee of 100 mm was used. ExtrHR kV 80 Effective mAs 50 Rotation time 1.0 sec S ...

  • Siemens Software version syngo CT 2005C - page 223

    Children 223 Hints • Use this pr otocol f or children below 35 k g. • Please change the mAs value according t o the weight of t he child: 15 – 34 kg 80 mAs. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 223 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 224

    224 Children ExtrHR_Child Indications: Spiral mode for bone stud ies, e.g., tumors, post- traumatic changes, orthopedic indications, etc. A range of 10 cm will be cov e red in 27 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of the knee of 100 mm was used. ExtrHR kV 130 Effective mAs 40 Rotation time 1.0 mm Slice collimat ...

  • Siemens Software version syngo CT 2005C - page 225

    Children 225 Hint • Children with a body weight of more than 55 k g should be examined with an adult pr otocol. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 225 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 226

    226 Children HeadAngio Indications : Spiral mode for head CT angiograph y , e.g., cerebral vascular abnormalities, tumors etc. A range of 6 cm will be cov ered in 32 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 60 mm was used. HeadAngio 2 nd reconstruction kV 80 Effective mAs 81 Rotation time 1.0 sec Slice collimation ...

  • Siemens Software version syngo CT 2005C - page 227

    Children 227 Hints • Children, who ar e more than 12 y ears old, should be scanned with an adult prot ocol as the skull by this time is fully grown. • C ARE Bolus may be used to op t imize the bolus timing with a triggering threshold of 120 HU, or use manual triggering. • An advanced algorithm allows f or impro ved head image quality , withou ...

  • Siemens Software version syngo CT 2005C - page 228

    228 Children HeadAngio08s Indications : Spiral mode for head CT angiograph y , e.g., cerebral vascular abnormalities, tumors etc. A range of 6 cm will be cov ered in 26 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 60 mm was used. HeadAngio 2 nd reconstruction kV 80 Effective mAs 65 Rotation time 0.8 sec Slice collimat ...

  • Siemens Software version syngo CT 2005C - page 229

    Children 229 Hints • Please change the mAs value according t o the age of the child: 6 – 12 years 80 mAs. • Children, who ar e more than 12 y ears old, should be scanned with an adult prot ocol as the skull by this time is fully grown C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 229 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 230

    230 Children Car otidAngio Indications: Spiral mode for the car otid arteries, e.g., caro tid steno - sis or occlusion, vascular a bnormalities of the caro tids or vertebral arteries, e tc. A range of 10 cm will be cov e red in 27 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 100 mm was used. CarotidAngio 2 nd rec ons ...

  • Siemens Software version syngo CT 2005C - page 231

    Children 231 Hints • Please change the mAs value according t o the age of the child: 6 – 12 years 75 mAs. • Children, who ar e more than 12 y ears old should be scanned with an adult prot ocol. • C ARE Bolus may be used to op t imize the bolus timing with a triggering threshold of 120 HU, or use manual triggering. C2-025.630.01.01.02_APPLIC ...

  • Siemens Software version syngo CT 2005C - page 232

    232 Children Car otidAngio08s Indications: Spiral mode for the car otid arteries, e.g., carotid st eno - sis or occlusion, vascular a bnormalities of the caro tids or vertebral arteries, e tc. A range of 10 cm will be cov e red in 22 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 100 mm was used. CarotidAngio 2 nd rec o ...

  • Siemens Software version syngo CT 2005C - page 233

    Children 233 Hints • Please change the mAs value according t o the age of the child: 6 – 12 years 75 mAs. • Children, who ar e more than 12 y ears old should be scanned with an adult prot ocol. • C ARE Bolus may be used to op t imize the bolus timing with a triggering threshold of 120 HU, or use manual triggering. C2-025.630.01.01.02_APPLIC ...

  • Siemens Software version syngo CT 2005C - page 234

    234 Children BodyAngio Indications: Spiral mode for abdominal CT Angio studies, e.g., vas - cular abnormalities, aneur ysms, etc. A range of 10 cm will be cov e red in 19 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 100 mm was used. BodyAngio 2 nd recons tr . kV 80 Effective mAs 41 Rotation time 1.0 sec Slice collimat ...

  • Siemens Software version syngo CT 2005C - page 235

    Children 235 Hints • Please change the mAs value according t o the weight of t he child: 35 – 44 kg 45 mAs 45 – 54 kg 60 mAs. • Children with a body weight of more than 55 k g should be examined with an adult pr ot ocol. • C ARE Bolus may be used t o optimize the bolus tim - ing. Set the ROI f or the monitoring scan in the abdominal aor t ...

  • Siemens Software version syngo CT 2005C - page 236

    236 Children BodyAngio08s Indications: Spiral mode for abdominal CT Angio studies, e.g., vas - cular abnormalities, aneur ysms, etc. A range of 10 cm will be cov e red in 15 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 100 mm was used. BodyAngio 2 nd recons tr . kV 80 Effective mAs 35 Rotation time 0.8 sec Slice colli ...

  • Siemens Software version syngo CT 2005C - page 237

    Children 237 Hints • Please change the mAs value according t o the weight of t he child: 35 – 44 kg 45 mAs 45 – 54 kg 60 mAs. • Children with a body weight of more than 55 k g should be examined with an adult pr ot ocol. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 237 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 238

    238 Children NeonateBody Indications : Spiral mode f or routine neonate body studies, e.g., tumors, abnormalities, malf ormations, abscesses, etc. A range of 15 cm will be cov e red in 17 sec. * The conversion fac tor f or a 7-year -old child, and a scan range of 150 mm was used. NeonateBody kV 80 Effective mAs 41 Rotation time 1.0 sec Slice collim ...

  • Siemens Software version syngo CT 2005C - page 239

    Children 239 Hints • Use this pro tocol f or children below 1 month of age. • C ARE Bolus may be used t o optimize the bolus tim - ing. Set the ROI f or the monitoring scan in the abdominal aor ta with triggering threshold of 120 HU, or use manual triggering. • Y o u can modify the slice width fo r image reconstruc - tion according to the cli ...

  • Siemens Software version syngo CT 2005C - page 240

    240 syngo 3D The 3D car d of fers the pos sibility to combine two- dimensional images to form three-dimensional vie ws. T o do this, the 3D card pr ovides you with the f ollowing methods: Multi Planar Reconstruction (MPR) Interactiv e navigation thr ough 3D volumes in arbitrar y orientations. • Or thogonal, oblique or do uble-oblique orientation. ...

  • Siemens Software version syngo CT 2005C - page 241

    syngo 3D 241 Shaded Sur face Display (S SD) Sur face display of complex anatomies. • 3D display of surfaces from a series of contiguous slices using a var iable threshold. • The display ed volume consist of vo xels whose HU are in a range defined by two limit values, an upper and a lower threshold (= HU limit s). • Display and analyze various ...

  • Siemens Software version syngo CT 2005C - page 242

    242 syngo 3D Prerequisites At least 3 and maximum of 1600 images must hav e been loaded to proces s 3D; (with more than 1600 images the series will be split up). All images must hav e the same x/y coordinates and FoV . • Y ou should close any data sets that you no longer need in order t o release memor y space and maintain application performance ...

  • Siemens Software version syngo CT 2005C - page 243

    syngo 3D 243 Image Representation on the 3D Card The image area on the 3D card is divided into four seg - ments: – Refer ence segment (sagittal view) – Refer ence segment (coronal view) – Refer ence segment (transversal view) – Output segment The first thre e segments are r efer ence segments, the fourth segment is an o utput segment. In th ...

  • Siemens Software version syngo CT 2005C - page 244

    244 syngo 3D Defining Output T ypes Y ou can change the output type fo r a segment at any time, i.e., from Multi Planar Reconstruction (MPR) to Maximum Intensity Pr ojection (MIP), t o Shaded Sur - face Display (SSD), or t o Volume Rendering T echnique (VRT). Depending on your working me thod, you will first gen - erate a ref erence image, for exam ...

  • Siemens Software version syngo CT 2005C - page 245

    syngo 3D 245 Radial Ranges For output types MPR, MPR Thick and MIP Thin you generate a series of cut images arranged in a star shape. For output types MIP , SSD and VRT you generat e a series of projections a nd views of the volume each ro tated around a defined ang le. In this way , you simu - late a step-b y-step rotation. For exam ple, for color ...

  • Siemens Software version syngo CT 2005C - page 246

    246 syngo 3D Editing A common problem in evaluating medical images is that areas r elevant t o an examination are hidden b y other struc tures, especially bones. The necessary image information is contained in the volume data set but must be made visible wi th suitable editing steps. 1. VO I mo de : With a V olume of Interest (V OI), you extract a ...

  • Siemens Software version syngo CT 2005C - page 247

    syngo 3D 247 3. 3D Object Editor: Easy elimination of obstructing informa tion. • Easy volume confinement with clip-box or variable editing slab. • F ast object creation with thr eshold operations or automatic volume gro wing. • Multiple editor objec ts ca n be displayed wit h differ - ently colored SSD. • Complet e object subtrac t io n wi ...

  • Siemens Software version syngo CT 2005C - page 248

    248 syngo 3D Regi on Gr owing Normally in th e first step yo u will generate one or mo re “objects“ from the v olume data set originally loaded in 3D. By specifying a limited vox el value range you extract only a section of the vox e ls from the original data set. In this wa y , you generate an objec t in the result segment. Instead of extra ct ...

  • Siemens Software version syngo CT 2005C - page 249

    syngo 3D 249 Like editing v olume data sets in the VOI mode, you can use the 3D Editor , too. Y ou are prov ided with tools f or cutting out str uctures from an object that you ha ve previously generat ed. Using the Slab Editor yo u can define your own cutting depth. Morphological Operations In some cases it will not be simple t o separate the stru ...

  • Siemens Software version syngo CT 2005C - page 250

    250 syngo 3D W o rkflow f or a CT Extremity Examination Using MPR/MPR Thick 1. Load the series to MPR. 2. Manipu late the volume to evaluate anatom y: a) Orientate the image volume f or the best view of the a natomy . b)Adjust the window as necessar y . c) Pan and zoom image as necessary . 3. Scroll thr ough the vo lume quickl y using the 3D cros s ...

  • Siemens Software version syngo CT 2005C - page 251

    syngo 3D 251 Using SSD 1. Load the series to S SD. Hint: Do not use a series with a high resolution k er - nel, e.g., kernel 10 or 20 is r ecommended. 2. Ma ni pula te th e volu me to eva lu ate an atomy: a)Orientate the image v olume for the best view of the anatom y . b)Adjust the threshold as neces sar y . c)Pan and zoom image as necessar y . d) ...

  • Siemens Software version syngo CT 2005C - page 252

    252 syngo 3D Wo r k f l o w fo r a C T Angiograph y Using MIP/MIP Thin 1. Load the series to MIP . 2. Manipu late the volume to evaluate anatom y: a)Orientate the image volume f or the best view of the anatom y . b)T o eliminate unwanted bone, either ac tivate MIP Thin or use V OI punching/3D Objec t Editor . c)Adjust the window as necessary . d)Pa ...

  • Siemens Software version syngo CT 2005C - page 253

    syngo 3D 253 Using VRT/VRT Thin/Clip 1. Load the series to VRT . 2. Manipulate volume to evaluat e anatom y: a)Orientate the image vo lume for the best view of the anatom y . b)T o eliminate unwanted bone, either ac tivate VRT Thin/Clip or use VOI punc hing/3D Object Edit or . c)Select VRT pr eset fr om VRT galler y . d)Adjust window , opacity , co ...

  • Siemens Software version syngo CT 2005C - page 254

    254 syngo 3D Hints in General Setting View s in the V olume Data Set Three-dimensional image pr ocessing allows y ou to cr e - ate images in any orientation and position within the data volume. Y ou can "move" thr ough the volume and ro tate it in any direc tion. Depending on the me thod you ar e using, various aids are available t o you. ...

  • Siemens Software version syngo CT 2005C - page 255

    syngo 3D 255 The plane is then no longer perpendicular t o either of the coordinate ax es. The image orient ation is display ed as a combination of three orientation labels. – The subtask card Orientation w i l l a l w a y s g i v e y o u t h e ability to re turn immediately back to the beginning or to an y st andard view . – View perpendicular ...

  • Siemens Software version syngo CT 2005C - page 256

    256 syngo 3D If the default settings are not appr opriate f or your diag - nostic problem, y ou can alter them individually . In that way y ou can emphasize the structur es of interest in an optimum wa y . – Ramp and trapezoid manipulation: Ramps and trap - ezoids are functions whic h define window and ren - dering settings. T rapezoids can also ...

  • Siemens Software version syngo CT 2005C - page 257

    syngo 3D 257 Auto Load in 3D and Post-proces sing Presets Y ou can activate the Auto load in 3D func tion on the Examination card/ Auto T asking and link it to a recon job. On the 3D car d you ha ve the possibility t o create Ranges Parallel and Radial pro tocols which can be linked t o a special series name. – Select the image type – Select th ...

  • Siemens Software version syngo CT 2005C - page 258

    258 syngo Fly Through syngo Fly Through is a Vir tual CT Endoscopy Sof tware integ rated into t he syngo 3 D f u n c t i o n a l i t y . I t o f f e r s t h e possibility to r ender endoluminal views of struc tures such as the air ways and v essels from v olume data sets. Vir tual CT Endoscopy simulates diagnostic conv en - tional endoscopic proced ...

  • Siemens Software version syngo CT 2005C - page 259

    syngo Fly Through 259 Prer equisites This sof tware w orks with CT , MR and conv entional Angiographic data sets. CT A dat a set with good vess el enhancement for virtual angioscopy . V olume data set acquired with ov er lapping thin slice CT technique. The Basics f or CT V ir tual Endoscopy SSD and VRT Presets for Endoscopic Renderings In order to ...

  • Siemens Software version syngo CT 2005C - page 260

    260 syngo Fly Through Endoscopic Viewing Parameters/Fly Cone Settings In general, the shape of a py ramidal cone can be used to repr esent visualization of an endoscopic volume. The boundaries and the viewing perspec tive of the endoscopic volume are defined b y adjusting the shape and size of this cone. Cone setting f o r flying through t he airwa ...

  • Siemens Software version syngo CT 2005C - page 261

    syngo Fly Through 261 • Standing P oint – The cone rotat es around the vie wing point. • Viewing Point – The complet e cone moves. • Clipping Point – The cone rotat es around the standing point. • Viewing Angle – Is changed by mo ving one of the sides of the angle. • Viewing Distance – The distance from the standing t o the view ...

  • Siemens Software version syngo CT 2005C - page 262

    262 syngo Fly Through Patient Preparation Bony and cartilaginous structures such as the central airway and bronch ial tree, the osteomeatal syst em of the Paranasal Sinuses are inhe r ently filled with air and theref ore ideal for performing Vir tual CT Endoscopy . No special preparations ar e required. For CT endoscopic ev aluation of the vessel ( ...

  • Siemens Software version syngo CT 2005C - page 263

    syngo Fly Through 263 Wo rk f l ow Load the images in 3D. The following standard lay o ut is display ed: Segment 1: Sagittal view Segment 2: Coronal view Segment 3: T r ansversal vie w Segment 4: Fly segment wi th perspectiv e SSD as default Scroll through the MPR images until you r each an image where yo u would like t o star t the CT endoscopic e ...

  • Siemens Software version syngo CT 2005C - page 264

    264 syngo Fly Through Position the Reference lines at that point of interest e.g., in the trachea. Click the Fly Thr ough icon to ac tivate the endoscopic display in the f our th segment. The default endoscopic displ ay has the same orienta - tion (viewing dir ection) as the last select ed image seg - ment in which you placed the point of inter e s ...

  • Siemens Software version syngo CT 2005C - page 265

    syngo Fly Through 265 Navig ation of the Endoscopic V olume •M a n u a l N a v i g a t i o n Click with the right mouse button in the Fly segment to ac tivate the SmartSelect menu. The following contr ols are av ailable: – auto-na vigation – push/pull – ro tate around viewing point –r o t a t e v i e w Adjust the viewing direc tion and se ...

  • Siemens Software version syngo CT 2005C - page 266

    266 syngo Fly Through Fly Path Planning Open the Fly Path Planning. Create a path by inserting path points i n the volume during navig ation. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 266 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 267

    syngo Fly Through 267 The relevant se ttings (viewing direction, vie wing angle etc.) ar e stored along the path. After defining and storing a path, it is pos sible to play back the entire na vigation along the path as a movie or to jump straight t o the section of the endoscopic v ol - ume predefined by the path points. Note: Only one pat h can be ...

  • Siemens Software version syngo CT 2005C - page 268

    268 syngo Dental CT This is an application package for r eformatting pan - oramic views and pa raxial slices through the upper and lower jaw . It enabl es the display and measurement of the bone structures of t he upper and lower jaw (espe - cially for a 1:1 scale) as the basis f or oral surger y plan - ning. The Basics What is the relevant anatomi ...

  • Siemens Software version syngo CT 2005C - page 269

    syngo Dental CT 269 Panoramic view Paraxial view Scan Pr ot ocols Y ou will find the Dental scan pro tocols under body regio n “ Hea d”: Dental kV 130 Effect ive m As 45 Rotation time 1.0 sec Slice collimation 1.0 mm Slice width 1.25 mm Feed/Rotatio n 2.0 mm Pitch F actor 1.0 Incremen t 0.5 mm Ke r n e l H60s CTDI Vol 10.25 mGy Effec tive d ose ...

  • Siemens Software version syngo CT 2005C - page 270

    270 syngo Dental CT • It is mandatory to position the patient head in the center of the scan field – use the lateral laser light mark er for positioning. • Gantr y tilt is not necessary since you have the ability to tilt the ref erence line to generate an axial refor - matted image at the desired plane. Ho wever , in order to minimize the sca ...

  • Siemens Software version syngo CT 2005C - page 271

    syngo Dental CT 271 Additional Impor tant Inf ormation • The Dental scan pro tocol delivers high resolution images for syngo Dental CT evaluation, ho wever , you can also reconstruc t images with sof ter kernel, e.g., H20s, for 3D/S S D post-processing. TO P-c ranial view Caudal view C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 271 Frida ...

  • Siemens Software version syngo CT 2005C - page 272

    272 syngo Dental CT • Image orientation: – In the paraxial vie w , a “B” indicates buccal and a “L ” lingual. The lingual marker “+” must always be positioned at the tongue. If not, sim ply drag & drop it bac k. – In the panoramic view , a “B” stands for “Begin” and an “E” for “End”. • Filming : for th e maxi ...

  • Siemens Software version syngo CT 2005C - page 273

    syngo Dental CT 273 • ROI definition f or statistica l evaluations and deletion of graphics is possible. Paraxial lines using ”Cluster”. • In the control area, y ou can configure if you want to display the paraxial lines orthogonal to the r eference line. C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 273 Friday, April 8, 2005 9:55 A ...

  • Siemens Software version syngo CT 2005C - page 274

    274 syngo Osteo CT This is an ap plication package for the quantitative assess ment of vertebral bone mineral density f or the diagnosis and f ollow-up of osteopenia and osteopor o - sis. The Basics This program enables the qu antitative det ermination of bone mineral density (BMD) of the spine in mg/ml of calcium hydr oxyapatite (CaHA) t o assist ...

  • Siemens Software version syngo CT 2005C - page 275

    syngo Osteo CT 275 Scanning Pr ocedure Scan Protocols Y ou will find the Osteo scan pr ot ocols under body region “Spine”: Osteo kV 80 Effect ive m As 81 Rotation time 1.0 sec Slice collimation 5.0 mm Slice width 10.0 mm Feed/Scan 0.0 mm Ke r n e l S80s CTDI Vol 2.23 mGy Effec tive d ose Male: 0.03 mSv Female: 0.08 mSv C2-025.630.01.01.02_APPLI ...

  • Siemens Software version syngo CT 2005C - page 276

    276 syngo Osteo CT The special k ernels are mostly used for ”ph ysical” mea - surements with phantoms, e.g., for adjustment pr oce - dures (S80s), f o r constancy and acceptance tests (S80s, U90s), or for specification purposes (U90s). For special patient pro tocols, S80s and U90s are chosen, e.g., for Osteo (S80s) and f or high resolution bone ...

  • Siemens Software version syngo CT 2005C - page 277

    syngo Osteo CT 277 • Position the cut line of scanning through the middle of the vertebra, i.e. bi-sect or between the angle of the upper and lower end plate. • The phantom must be included in the FoV of the images for evaluation. • It is recommended t o end the exam first, and t hen star t the syngo Osteo CT ev aluation. • Do not use the c ...

  • Siemens Software version syngo CT 2005C - page 278

    278 syngo Osteo CT Configuration In the Ost eo configuration you can define the follo w- ing parame ters: Yo u c a n • use the Siemens standard ref erence database or cre - ate and import your own • change betw een 1 and 2 standard deviations (dis - play of the summar y graph) • use the Siemens Reference phant om or enter values for bone and ...

  • Siemens Software version syngo CT 2005C - page 279

    syngo Osteo CT 279 How can you sav e the results on your PC? – Selec t Option/Co nfiguration from the main menu and click icon ”CT Osteo”. – Activat e the checkbo x “Enable Expor t of Results”. – “Exit” the configuration dialog. – C a l l u p t h e Osteo card and you will see the new icon “Expor t results” on the lower , rig ...

  • Siemens Software version syngo CT 2005C - page 280

    280 syngo Osteo CT Example for one patient with three Ost eo tomo - grams : P A TIENT; John Smith; 007; 64; Male IMAGE; L2; 234; 2; 27-JAN-1998; 11:12:17; 61. 7; 48.9; 55.3; 20.8; 20.1; 21.5; 20 5.8; 192.0; 198 .7; 50.6; 47.5; 49.5 IMAGE; L3; 236; 3; 27-JAN-1998; 11:12:18; 60. 4; 54.5; 49.3; 22.3; 21.1; 21.8; 21 0.5; 191.9; 180 .7; 50.4; 47.5; 52.3 ...

  • Siemens Software version syngo CT 2005C - page 281

    syngo Osteo CT 281 Abbreviations: TML T r abecular Mean Left TMR T rabecular Mean Right TMT T rabecular Mean T otal TSL T r abecular Standard Deviation Left TSR T r abecular S tandard Deviation Right TST T rabecular Standard Dev iation T otal CML Cortical Mean Lef t CMR Cortical Mean Right CMT Cor tical Mean T otal CSL Cortical Standar d Deviation ...

  • Siemens Software version syngo CT 2005C - page 282

    282 syngo Osteo CT Evaluation W orkflow After loading the images i nto the syngo Ost eo CT appli - cation, pres s “Start Evaluation“. Check the corr ect positioning of the ROIs in the Calibra - tion phantom. Y ou can change the position by moving the two cir cles. Correcting cont our lines Y ou can per form corr ection of the contours b y movin ...

  • Siemens Software version syngo CT 2005C - page 283

    syngo Osteo CT 283 1. Center of the spinal canal (C) 2. Uppermos t point of the co rtical spinal body (A) 3. Intermediate point (L) 4. Intermediate point (R) 5. Uppermos t point of the spinal canal (T) – Click on a base point w ith the mouse. – Mov e it keeping t he left mouse k ey pres sed. If you are satisfied wit h the contours press “ Acc ...

  • Siemens Software version syngo CT 2005C - page 284

    284 syngo Osteo CT The other summar y image displays a graph whic h shows the comparison of all e valuated vertebrae with the select ed Reference Data. “T - s c o re ” This is the deviation of av erage BMD of the patient from tha t of a young health y comparison gr oup. It rep - resents bone loss with r eference t o the peak bone mass . “Z-sc ...

  • Siemens Software version syngo CT 2005C - page 285

    syngo Osteo CT 285 The second and the four th segment belong toge ther . The second segment shows the tomogram images with the contours superim posed. The fourth segment shows the calculat ed resu lts of the corresponding tomogram image. Both segments ar e bordered by the same color . If you scr oll through one of these seg - ments the other segmen ...

  • Siemens Software version syngo CT 2005C - page 286

    286 syngo Osteo CT After “End Evaluation“ the ev aluation results are auto - matically sav ed in three series: – Summar y contains both images of the third segment –C o n t o u r s contains the tomogram images with t he contours superimposed (second segment) –T a b l e s contains the result tables f or each vertebra (fourth segment ) C2-0 ...

  • Siemens Software version syngo CT 2005C - page 287

    syngo Osteo CT 287 Additional Impor tant Inf ormation • F ractur ed vertebrae are not suited f or syngo Osteo CT evaluation since the mor e compact natur e of these vertebrae result in bone mineral density value that is much higher than one would expect. • When you ex amine a patient who is older than 80 years, the patient examination data cann ...

  • Siemens Software version syngo CT 2005C - page 288

    288 syngo Vo l u m e E v a l u a t i o n V olume is an evaluat ion function which al lows most accurate calculation of a vo lume out of a st ack of two- dimensional images. This can be done by V olume-of-Inter est (VOI) defini - tion and by limiting the minim um and maximu m den - sity (HU) values for calculation. Different views of the image data ...

  • Siemens Software version syngo CT 2005C - page 289

    syngo Vo l u m e E v a l u a t i o n 289 • Interac tive outlining of freehand and elliptical Regions-of-Interest is a vaila ble, with the possibility to define evaluation (HU) limits inside the V OI. • Aut omatic interpolat ion between tw o pending ROIs is per formed, i.e. the user only has to define the ROI in select ed images within the stack ...

  • Siemens Software version syngo CT 2005C - page 290

    290 syngo Vo l u m e E v a l u a t i o n Prer equisites The images must fulf ill the following conditions: • Only images of one patient must be loaded for eval - uation with Volume. • The scans must ha ve been acquir ed with the same table height and the same gantry tilt. • Only image data sets with the same slice orientat ion must be used; ( ...

  • Siemens Software version syngo CT 2005C - page 291

    syngo Vo l u m e E v a l u a t i o n 291 Wo rk f l ow 1. Loading the Images After loading t he images int o syngo Volume E valua - tion, the following la yout is displayed: • Segment 1: Display of sagittal im ages. The images are sorted fr om left to right, according to the patient ’s anatomy . • Segment 2: Display of coronal images. The imag ...

  • Siemens Software version syngo CT 2005C - page 292

    292 syngo Vo l u m e E v a l u a t i o n 2. Preparing Volume Calculation Before y ou star t the volume definition, f irst optimize the display of the images. T o mak e interactiv e volume definition easier , you can • delete images t hat you do not re quire f o r volume cal - culation from the original data set • change the display of the image ...

  • Siemens Software version syngo CT 2005C - page 293

    syngo Vo l u m e E v a l u a t i o n 293 3.1. Planning a Volume with Automatic V olume Detec - tion The automatic met hod is best used to evaluat e a struc - ture which has a different contrast (HU) t han the sur - rounding tissue, such as the lung. Y o u plan the volume with just a few clicks. Auto matic V olume De tec tion uses the 3D r egion gro ...

  • Siemens Software version syngo CT 2005C - page 294

    294 syngo Vo l u m e E v a l u a t i o n Restrict ing Automa tic V olume Det ection Y ou can restrict Aut omatic V olume Detection t o a defined smaller volume. • Draw an ROI aro und the image area of inter est on at least the first and the last image that you w ant to be included in the volume. The ROIs define t he bound - ing box f or the autom ...

  • Siemens Software version syngo CT 2005C - page 295

    syngo Vo l u m e E v a l u a t i o n 295 The contours of the ROIs define the out er border of the evaluated v o lume. Y ou do not need t o define the ROIs on every slice. The system automatically interpolat es ROIs on the images which lie be tween the images with defined ROIs. • Check the images and searc h for the desired objec t structure. • ...

  • Siemens Software version syngo CT 2005C - page 296

    296 syngo Vo l u m e E v a l u a t i o n • T o include only a specific range of HU values int o the volume, change the Evaluation Limits. By default, the Evaluation Limit s take all HU values of the last evaluation. • T o star t the evaluati on, click the Start Evaluation bu t - ton. The evaluation re sults are displayed in segment 4. The volum ...

  • Siemens Software version syngo CT 2005C - page 297

    syngo Vo l u m e E v a l u a t i o n 297 Overlap and Mark&Link Method Y ou can define complex volumes using the automatic (overlap) and manual (mark&link) me thod. • Overlapping me thod Drawn ROIs that overlap each o ther ver tically for at least a few pix els are automatically combined to one volume. Interpolat ed ROIs (dott ed line) are ...

  • Siemens Software version syngo CT 2005C - page 298

    298 syngo Vo l u m e E v a l u a t i o n With the Ov erlap method, y ou can also create a v ol - ume from two ROIs that do not overlap in t he first step. It is t he n n ece ss ary t o d ra w a n RO I in an im age wh ic h lies between the tw o other ROIs, so that the ne w ROI overlaps wit h the two pre vious ROIs. This way , you can easily define a ...

  • Siemens Software version syngo CT 2005C - page 299

    syngo Vo l u m e E v a l u a t i o n 299 4. Evaluation Results When you click the Start Eval uation button, the system calculates the planned volume within t he evaluation limits. The evaluation results are displa yed in segment 4. Only the statistic parameters that are set in the configura - tion dialog box ar e calculated. V olume pixels and eval ...

  • Siemens Software version syngo CT 2005C - page 300

    300 syngo Vo l u m e E v a l u a t i o n 5. Documentation of Results If all volumes are e valuated, you can sa ve and film the result s. Sa ve – st ores to your local database: • The transv ersal image s with the color -coded VOI • The refo rmatted images (s agittal, cor onal, MPR/MIP) • The displayed result shee t T wo new series are creat ...

  • Siemens Software version syngo CT 2005C - page 301

    syngo Vo l u m e E v a l u a t i o n 301 • ROI and V olume Definition – If y ou inser t/modify an ROI, the system automati - cally plans the ROIs on the preceding/following images (interpolated ROIs) up to that image with the pre vious/next user-defined ROI. – User -defined ROIs have a solid contour line, whereas int erpolated ROIs ha ve a do ...

  • Siemens Software version syngo CT 2005C - page 302

    302 syngo Vo l u m e E v a l u a t i o n • Restrictions for Linking and Unlinking There are some restrictions f or linking and unlinking: – Linking can be done on user-defined ROIs as well as on interpolated ROIs. If you link an interpolated ROI (dott ed line), it beco mes a user-confirmed ROI (solid line). – Y ou cannot unlink interpolated R ...

  • Siemens Software version syngo CT 2005C - page 303

    syngo Vo l u m e E v a l u a t i o n 303 Configuration In the V olume Configuration dialog box, you define which evaluation results are giv en by V olume Evalua - tion. – Unit of V olume mm 3 V olume is given in mm 3 . cm 3 Vo lume is given in cm 3 . C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 303 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 304

    304 syngo Vo l u m e E v a l u a t i o n – Statistical Parameters Volume V olume is calculate d in the defined unit: mm 3 or cm 3 . Max. height [cm] Maximum height of the r econ - struct ed volume. Max. width [cm] Maximum width of the recon - struct ed volume. Max. dep th [cm] Maximum dep th of the r econ - struct ed volume. Mean value [HU] Mean ...

  • Siemens Software version syngo CT 2005C - page 305

    syngo Vo l u m e E v a l u a t i o n 305 C2-025.630.01.01.02_APPLICATIONGUIDE_SPIRIT.book Page 305 Friday, April 8, 2005 9:55 AM ...

  • Siemens Software version syngo CT 2005C - page 306

    306 Dynamic ev aluation is a func tion which allows y ou to analyze the absolute or r e lative enhancement of Houn - sfield values within a Region of Interest. The enhancement value is computed from a stack of CT images which are obtained at different points in time after contrast agent injection. For dynamic e valu - ation, usually images fr om th ...

  • Siemens Software version syngo CT 2005C - page 307

    syngo Dynamic Evaluation 307 •U s e o f syngo functions lik e dog-ea rs or cine mode for fast paging through the image stack. • Easy selection, modificati on and dele tion handling for the ROIs. • Constant display of the time-density curves with a scalable sampling line, and of t he tabular results which display f or each separate ROI – the ...

  • Siemens Software version syngo CT 2005C - page 308

    308 syngo Dynamic Evaluation Prer equisites In dynamic evaluation, images that wer e s canned as part of an examination with contrast agent at a con - stant table position are evaluated. • The selection consists only of CT tomogram images. • The images belong to t he same study . • The images were acq uired within 1 hour . • Images of at le ...

  • Siemens Software version syngo CT 2005C - page 309

    syngo Dynamic Evaluation 309 Wo rk f l ow 1. Loading the Images After loading t he images int o syngo Dynamic Evalua - tion, the follo wing layout is displa yed: • T omo segment The loaded input images are display ed in the upper left-hand segment. The images are sorted by the acquir ed time. • Paramet er image segment Paramet er images are dis ...

  • Siemens Software version syngo CT 2005C - page 310

    310 syngo Dynamic Evaluation • Baseline image segment The baseline image is displa yed in the lower left hand segment (base for enhancement calculation). By default, the first image of the loaded images is used as the baseline image. • Result segment It is black after loading. 2. Inspecting the Input Images Befor e you begin the e valuation, op ...

  • Siemens Software version syngo CT 2005C - page 311

    syngo Dynamic Evaluation 311 E a c h ti m e y o u m a k e a c h a n g e t o t h e o r i g i na l d a t a s e t (by remo ving images, and/or defining a new baseline image) your syst em recalculates the paramet er images based on the existing images. – The av erage image is an averaged addition of all pixels at eac h pixel location acro ss the imag ...

  • Siemens Software version syngo CT 2005C - page 312

    312 syngo Dynamic Evaluation – Peak Enhancement image: Paramet er image wher e each pixel indicates the enhancement at that pix el location. CT value of a pixel = maximum value found at that pixel location (pixel value of the MIP image) – CT value of the baseline imag e at that pixel lo cation. With a Peak Enhancement image, for example, y ou c ...

  • Siemens Software version syngo CT 2005C - page 313

    syngo Dynamic Evaluation 313 4. Creating a Baseline Imag e A baseline image is used as a basis for all enhancement calculations. The enhancement is calculated r elatively t o the base - line image. Therefor e, the baseline image must show the state befor e enhancement star ts. By default, the first image of the loaded images is used as the baseline ...

  • Siemens Software version syngo CT 2005C - page 314

    314 syngo Dynamic Evaluation 5. Evaluation of Region of Interests Y ou select the image regions t o be evaluated b y mark - ing them with ROIs or applying the pixel lens (a circular ROI with a fixed but configurable diame ter). An abso - lute/r elative C T -value calculation i s performed f or these select ed image. • Y ou can draw either ellipti ...

  • Siemens Software version syngo CT 2005C - page 315

    syngo Dynamic Evaluation 315 6. Enhancement Curve As soon as you hav e defined an ROI, an enhancement cur ve (time-density cur ve) is calculated and displa yed in the fourth segment. T o facilitate identification, this cur ve has the same color and numbering as the associ - ated ROI. The maximum CT -value of the ROI first drawn is indicated by a da ...

  • Siemens Software version syngo CT 2005C - page 316

    316 syngo Dynamic Evaluation 7. Documentation of Results During the evaluation you ha ve dra w n individual ROIs and hav e generated enhancement curves and r esult tables. Y ou can sav e and print out this inf ormation or stor e it on a floppy f or fur ther processing. T o document the evaluation, two ne w series are stored to y our local database. ...

  • Siemens Software version syngo CT 2005C - page 317

    syngo Dynamic Evaluation 317 General Hints • Slice Position with Multi-Row Scanners When you use a multi-r ow scanner , several slice posi - tions are scanned per acquisition. When y ou load the images, the window Slice Selection is displa yed, in which you can define the slice position t o be analyzed. Y ou can evaluate either the scanned examin ...

  • Siemens Software version syngo CT 2005C - page 318

    318 syngo Dynamic Evaluation • Filtering T o reduce noise in the Time to Peak and Peak Enhance - ment image you can apply a smoothing filter . Filtering does no t af fect the evaluation of ROIs. • Moving the Sam pling Line If you want t o evaluate the enhancement values f or a different point in time, move the sampling line in the horizontal di ...

  • Siemens Software version syngo CT 2005C - page 319

    syngo Dynamic Evaluation 319 • Relative Enhancement Curve Time Axis (X) The point of time f or an image is comput ed relativ e to the point of time at which the fir st input image was acquir ed: Point of Time = Acquisit ion Time – Acq uisition Time of the First Image + Delay • Enhancement Axis (Y) The mean C T value o f each ROI is plotted on ...

  • Siemens Software version syngo CT 2005C - page 320

    320 syngo Dynamic Evaluation • Configuring Dynamic Evaluation Y ou can make the f ollowing settings in DynEva Config - uration: – Calculate Time to Peak Image A Time to Peak Image is generat ed and displayed in the upper right-hand segment. Y o u can use the image for RO I definition. – Calculate Peak Enhancement Image A Peak Enhancement Imag ...

  • Siemens Software version syngo CT 2005C - page 321

    Autho rized Repres entative according to the Med ical Device Directiv e 93/42/EEC Siemens AG Medical Solution s Henkestr . 127 D-91052 Erlangen Germany T elephone: +49 9131 84-0 www .siemens.com/medical Manufac turer Siemens Shanghai Medical Equipment Ltd . (SSME) 278 Jin Hu Road 201206 Shanghai, P .R. China T elephone: +86 21 50320300 © 2002-2005 ...

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