| Specific Anatomic Region | Liver |
| Application | Suspected hepatoma (dual phase study) |
| Author | Fishman EK |
| Reference Source | Personal Communication |
| Scanner Used | Siemens Plus4 Volume Zoom |
| KV / mAs / Time per Rotation (sec) | 120/165/.5 (both phases) |
| Detector Collimation (mm) | 2.5 or 1 |
| Slice Thickness (mm) | 3-5 or 1.25 |
| Data Reconstruction Interval (mm) | 3-5 or 1 |
| Table Speed (mm per rotation) / Pitch | 12.5/5 or 6 / 6 |
| Oral Contrast | 750 cc of water |
| IV Contrast Volume and Type | 120 cc of Omnipaque 350 |
| Injection Rate | 3 cc/sec |
| Scan Delay (sec) | 30 sec/60 sec |
| 3D Technique Used | Volume rendering/MIP (if needed) |
Comments: - This is a dual phase study, and requires both arterial and portal phase studies. Some will recommend a non-contrast phase as well. Also, some will suggest that the portal/delayed phase be at 80-100 seconds. In this protocol, 3D imaging is optional, and is usually used if a tumor is detected and surgical planning is needed.
- When 3D imaging is requested we use 1 mm detectors with 1.25 collimation and reconstruction at 1 mm intervals.
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