Specific Anatomic Region | Colon |
Application | Focused virtual colonoscopy (i.e. stage rectal cancer) |
Author | Fishman EK |
Reference Source | Personal Communication |
Scanner Used | Siemens Plus4 Volume Zoom |
KV / mAs / Time per Rotation (sec) | 140/210/.5 |
Detector Collimation (mm) | 1 |
Slice Thickness (mm) | 1.25 |
Data Reconstruction Interval (mm) | 1 |
Table Speed (mm per rotation) / Pitch | 6/6 |
Oral Contrast | N/A (rectal air only) |
IV Contrast Volume and Type | 120 cc of Omnipaque 350 |
Injection Rate | 3 cc/sec |
Scan Delay (sec) | 50 sec |
3D Technique Used | Volume rendering and MPR |
Comments: - The pelvis protocol is chosen, which includes a filter to reduce beam hardening artifacts. The rest of the abdomen, including the liver, can be scanned with 5mm collimation.
- Scan from the pelvis to the diaphragm. This allows the liver to be scanned in the portal phase.
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