CTA MESENTERIC ARTERIES
(last updated 6/20/2016, last reviewed 02/10/2022)
(last updated 6/20/2016, last reviewed 02/10/2022)
INDICATION: Celiac or SMA stenosis. Intestinal ischemia. Vasculitis, vasculopathy.
SERIES
- 1mm Axial CTA
- 3mm Coronal CTA
- 3mm Sagittal CTA
- 3D volume rendered & MIPS
| | |
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POSITIONING/MODE
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supine/helical |
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kV/mA/rot time
|
120kV/Auto mA/0.5 sec |
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DETECTOR COLLIMATION
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16 x 1.5mm (S16) 24 x 1.2mm (D64) |
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SLICE THICKNESS
|
1mm |
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PITCH
|
1 to 1.5 |
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TABLE FEED
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4.8 cm/sec (S16) 5.8 cm/sec (D64) |
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KERNAL
|
std |
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SFOV
|
large |
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COVERAGE
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diaphragm -> pubic symphysis |
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ACQUISITION
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craniocaudal |
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ORAL CONTRAST
|
water |
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IV CONTRAST
|
100 mL Isovue 370, then 40 mL saline |
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INJECTION RATE
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4 mL/sec |
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SCAN DELAY
|
Care bolus descending thoracic aorta @ diaphragm (100 HU or visual) ~30 sec |
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RESPIRATION
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Inspiration |
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POSTPROCESSING
|
3mm Coronal and Sagittal Volume rendered 3D and 3D MIPS |