CTDIvol as a function of gantry angulationa
| Tilt | CTDIvol (mGy) | Tilt | CTDIvol (mGy) |
|---|---|---|---|
| 30 | 44.8 | 0 | 51.6 |
| 25 | 46.9 | −5 | 51.6 |
| 20 | 48.6 | −10 | 51.1 |
| 15 | 50.1 | −15 | 50.1 |
| 10 | 51.1 | −20 | 48.6 |
| 5 | 51.6 | −25 | 46.9 |
a Scanning parameters were identical for each angle. Positive tilt values correspond to the caudal direction; negative tilt values correspond to the cranial direction.