Specific Anatomic RegionKidney
ApplicationSuspected renal mass
AuthorElliot K. Fishman, MD
Reference SourceJHU protocol
Scanner UsedSiemens Somatom Sensation 16
KV / Effective mAs / Rotation time (sec)NONCONTRAST 120 / 200/ 0.5 ARTERIAL 120 / 200 / 0.5 VENOUS 120 / 200 / 0.5DELAYS 120 / 200 / 0.5
Detector Collimation (mm)0.750.750.750.75
Slice Thickness (mm)0.750.750.750.75
Feed / Rotation (mm)
Increment (mm)
Image Ordercr-ca
Oral Contrast1000 cc water over 20 minutes
IV Contrast Volume and Type100-120 cc of Omnipaque 350
Injection Rate3-4 cc/sec
Scan Delay (sec)25 sec arterial / 50-55 sec venous / 240 sec excretory phase
3D Technique UsedVRT w/ supplemental MIP using InSpace
Comment: - Some people use 4 phases although we tend to use 3 phases to try to reduce the patient dose. In cases where the clinical question is simply to stage a tumor the noncontrast scans can be eliminated. Use InSpace preset for CT urography. We use a 4 minute delay for CT urography. Filming: Recon- Both art. / delays by 5x5 for filming
Recon lung / liver by 5x5 for filming.