Specific Anatomic RegionKidney
ApplicationCT urography
AuthorElliot K. Fishman, MD
Reference SourcePersonal communication
Scanner UsedSensation 16
KV / Effective mAs / Rotation time (sec)120 kV/ 225 mAs / 0.5 sec
Detector Collimation (mm)  0.75 mm
Slice Thickness (mm)Non-contrast- 5mm Arterial and delay- 0.75 mm
Feed / Rotation (mm)  12.0 mm
Kernel  B30f medium smooth
Increment (mm)non-contrast- 5 mm x 5 mm arterial and delay- 0.75 mm x 0.5 mm (3D) 5mm x 5mm (filming)
Image Ordercraniocaudal
Oral Contrastwater- 1000cc over 15 minutes
IV Contrast Volume and Type120 cc Omnipaque 350
Injection Rate3.0-3.5 cc/sec
Scan Delay (sec)Non-contrast- none (4 sec) Arterial - 25-30 sec delay = 4 min
3D Technique UsedVRT with opaque and transparent projections are done for CT urography  
Comment: -The CT urographic component can typically be done as early as 4 minutes post injection and as late as 8 minutes.We have not used compression although it can be helpful. Some might obtain the first acquisition at a bit later at 45-50 seconds. We preferarterial dominant vascular mapping.