Specific Anatomic Region | Kidney | |||||
Application | Hematuria | |||||
Author | Elliot K. Fishman, MD | |||||
Reference Source | JHU protocol | |||||
Scanner Used | Siemens Somatom Sensation 16 | |||||
KV / Effective mAs / Rotation time (sec) | NONCONTRAST 120 / 200/ 0.5 | ARTERIAL 120 / 200 / 0.5 | VENOUS 120 / 200 / 0.5 | DELAYED 120 / 200 / 0.5 | ||
Detector Collimation (mm) | 0.75 or 1.5 | 0.75 | 0.75 | 1.5 | ||
Slice Thickness (mm) | 3 | 1 | 1 | 5 | ||
Feed / Rotation (mm) | 12.0 | 12.0 | 12.0 | 24 | ||
Kernel | B30f | B30 | B30 | B30 | ||
Increment (mm) | 3 | 0.5 | 0.5 | 5 | ||
Image Order | Kidney only or full abdomen | Kidney only | Kidney only | Full abdomen | ||
Oral Contrast | 1000 cc/ water | |||||
IV Contrast Volume and Type | 100-110 cc of Omnipaque 350 | |||||
Injection Rate | 3-4 cc/sec | |||||
Scan Delay (sec) | 25 sec arterial / 60 sec venous / 240 sec excretory phase | |||||
3D Technique Used | VRT w/ MIP | |||||
Comment: - Depending on the case and what is seen on the arterial phase, a venous phase can also be obtained similar to protocol for the renal mass. A key for hematuria is to exclude a uroendothelial tumor and delayed scans at a minimum of 4 minutes are needed. We routinely will do a CT urogram at the 4 minute mark. We reconstructed the data using a variety of opacities of VRT. Filming: Recon-Arterial 5x5 for filming Recon- Lung / liver 5x5 for filming |