Table 7.
Computed tomography protocols for living renal donors in our institute
| Unenhanced | Arterial | Excretory | |
| Scan range | Dome of liver-iliac crest | Dome of liver-iliac crest | Top of kidney-iliac crest |
| Detector collimation (mm) | 64 × 0.625 | 64 × 0.625 | 64 × 0.625 |
| Pitch | 1.375 | 1.375 | 1.375 |
| kVp | 120 | 120 | 100 |
| mA | 150-450 | 150-550 (150-800 for patient > 135 kg) | 150-450 |
| Noise index | 20 | 28 (< 60 kg) | 18 |
| 32 (61-90 kg) | |||
| 35 (> 90 kg) | |||
| Table speed (mm/rotation) | 55 | 55 | 55 |
After arterial phase scanning, plain radiograph image (kidney-ureter-bladder) is acquired at 6 min delay after the injection of contrast medium starts. Excretory phase images are acquired immediately.