Table 1.
Pancreatic multidetector row computed tomography (MDCT) protocol at UCLA
| MDCT generation | 16 row | 64 row |
|---|---|---|
| Contrast | 125 mL of 350 mg I/mL contrast agent infused at 3 cc/s | |
| Scan timing | ||
| Pancreatic phase (PP) | ||
| Fixed delay | 50 s | 55 s |
| Bolus tracking | 150 HU trigger + 25 s | 150 HU trigger + 30 s |
| Hepatic phase (HP) | ||
| Fixed delay | 70 s | 75 s |
| Bolus tracking | End of PP + 10 s | End of PP + 10 s |
| Scan volume | Diaphragm to iliac crests | Diaphragm to iliac crests |
| Scan direction | Cranial to caudal | Cranial to caudal |
| Collimation (mm) | PP: 0.75, HP: 1.5 | PP: 0.6, HP: 1.5 |
| Table feed/rotation (mm) | PP: 12, HP: 24 | PP: 38, HP: 76 |
| Rotation time (s) | 0.5 | 0.5 |
| KVp | 120 | 120 |
| MAs | 200–250 | 200–250 |
| Image reconstruction | ||
| Routine (thickness/interval) (mm) | PP axial: 2/2 | PP axial: 2/2 |
| PP coronal: 2/1 | PP coronal: 2/1 | |
| PP sagittal: 2/2 | PP sagittal: 2/2 | |
| HP axial: 5/2.5 | HP axial: 5/2.5 | |
| Optional (thickness/interval) (mm) | PP axial: 1/1 | PP axial: 1/1 |