Specific Anatomic RegionAbdominal aorta
ApplicationF/u stent placement
AuthorElliot K. Fishman, MD
Reference SourcePersonal communication
Scanner UsedSensation 16
KV / Effective mAs / Rotation time (sec)non-contrast- 120 / 200 / 0.5 sec arterial and delay- 120 / 225 / 0.5 sec
Detector Collimation (mm) Non-contrast- 1.5 mm Arterial and delay - 0.75mm / 1.5 mm
Slice Thickness (mm)Non-contrast - 5mm Arterial and delay - 0.75 / 2.0 mm
Feed / Rotation (mm)Non-contrast - 24 mm Arterial - 12-24 mm Delay- 12-24 mm
KernelB30f medium smooth
Increment (mm)Non-contrast - 5mm x 5mm Arterial and delay - 0.75 x 0.5 or 2.0 x 1.0
Image Ordercraniocaudal
Oral Contrast1000 cc water
IV Contrast Volume and Type100 - 120 cc Visipaque 320 or Omnipaque 350
Injection Rate3.0-3.5 cc/sec
Scan Delay (sec)Non-contrast - normal (4 sec) Arterial = 30 sec Delay = 30 sec
3D Technique UsedVRT /MIP / MPR
Comment: -The key for this study is to look for endoleaks. Non contrast scans are used to define any increased densities (ie calcification) that might be confused with a leak.