Specific Anatomic RegionKidney
ApplicationR/O renal artery stenosis
AuthorElliot K. Fishman, MD
Reference SourcePersonal communication
Scanner UsedSensation 16
KV / Effective mAs / Rotation time (sec)120 kV/ 225 eff. mAs / 0.5 sec
Detector Collimation (mm)  0.75 mm
Slice Thickness (mm)0.75 mm
Feed / Rotation (mm)  12.0 mm
Kernel  B30f medium smooth
Increment (mm)0.75 mm x 0.5 mm (3D) 5mm x 5mm (filming)
Image Ordercraniocaudal
Oral Contrast1000cc of water
IV Contrast Volume and Type120 cc Omnipaque 350 / Visapaque 320
Injection Rate3.0-3.5 cc/sec
Scan Delay (sec)Arterial - 25-30 sec Venous- 20 sec
3D Technique UsedVRT & MIP
Comment: -If one can not localize the kidneys on the topogram then low dose noncontrast scans are done to define the renal artery locations. In patients with poor renal function we can use 60-80 cc of visipaque- 320 followed by a 20-30 cc saline bolus chaser.