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Liver, dual phase

ExamCard
Philips CT Clinical Science Philips Healthcare USA


Description
Clinical AreaAbdomen / Pelvis
AnatomyLiver
ExamCardLiver, Dual Phase
InstitutionIndiana University
Publication DateSep 1, 2004
ScannerBrilliance 40 Channel Version: Brilliance Version 1.2
Liver, Dual Phase
Scan 1Injection Protocol
Scan 2Surview
Scan 3Bolus Tracking Locator Image
Scan 4Bolus Tracking Scan
Scan 5Contrast Scan - Arterial Phase
Scan 6Delayed Scan - Portal Venous Phase
Scan 7Post Processing Visualization


Injection Protocol
Power InjectorYes with Bolus Tracking
RouteRAC or LAC
Size of Angiocath20 G
Contrast TypeIsovue
Amount of Contrast150 ml
Concentration of Contrast300 mg/ml
Contrast Injection Rate4 ml/sec
Delay(s) to ScanArterial: Bolus tracking triggers scan, wait 20 seconds before scanning Portal Venous: 75 seconds

Surview
Landmark - Feet FirstAbove diaphragm: Internal laser
Length of Surview450 mm
TipsVertical laser mid-abdomen

Bolus Tracking Locator Image
Landmark PositionAbove diaphragm
Scan LocationAorta at diaphragm level

Bolus Tracking Scan
Threshold Preset125 HU
Post Threshold Trigger(s) for Delay ScanArterial: Bolus Tracking Delay plus 20 seconds **(see tips)Portal Venous: 75 seconds
TipsScan must start 20 seconds AFTER reaching 125 threshold in order to capture arterial transitional phase**Sequence usually triggers @ 15 sec plus 20sec delay = 35 sec for Arterial Ph. Set Venous Phase @ 60sec delay. ( 15 plus 60 sec delay = 75 sec Venous Phase.)

Contrast Scan - Arterial Phase
Scan ModeHelical
ResolutionStandard
Collimation40 x 0.625
FOV250-300 mm
Thickness0.9 mm
Increment0.45 mm
Pitch0.67
Rotation Time0.5 seconds
kV120
mAs300
Matrix512
FilterB - Standard
Window/Level400/35 Soft Tissue120/100 Liver
Scan DirectionSuperior to Inferior
CoverageTop of diaphragm to crest
Approximate Scan Time8 seconds
Additonal ReconstructionsAxialThickness: 4 mmIncrement: 3 mm
Planar Generated Data SetsUse raw 0.9 imagesCoronalThickness: 4 mmIncrement: 3mm
Images to PACSAxial: 4 x 3'sCoronals: 4 x 3's

Delayed Scan - Portal Venous Phase
Scan ModeHelical
ResolutionStandard
Collimation40 x 0.625
FOV250-300 mm
Thickness0.9 mm
Increment0.45 mm
Pitch0.67
Rotation Time0.5 seconds
kV120
mAs300
Matrix512
FilterB - Standard
Window/Level400/35 Soft Tissue
Scan DirectionSuperior to Inferior
CoverageTop of diaphragm to crest
Approximate Scan Time8 seconds
Additonal ReconstructionsAxialThickness: 4 mmIncrement: 3 mm
Planar Generated Data SetsUse raw 0.9 imagesCoronalThickness: 4 mmIncrement: 3mm
Images to PACSAxial: 4 x 3'sCoronals: 4 x 3's

Post Processing Visualization
ApplicationWorkspace - CT Viewer
RenderingMIP
Thickness10 mm at 3 mm increment - batch
OrientationCoronal in arterial phase series


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Jul 25, 2005

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ExamCard
Brilliance 40-channel
abdomen, aorta, Body, Brilliance Version 1.2, liver, MIP
 

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