TABLE III.
Times required for different motion mitigation techniques. LR, layered rescanning; VR, volumetric rescanning.
| Scanning times (min/field) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Patient Nr | Tumor size (cm3) | Spot size | None | 2x-LR | 6x-LR | 2x-VR | 6x-VR | Gating |
| 1 | 21.1 | BigSpots | 0.6 | 0.7 | 0.9 | 0.9 | 2.0 | 2.0 |
| SmallSpots | 1.7 | 2.9 | 7.9 | 3.1 | 8.9 | 5.5 | ||
| 2 | 26.0 | BigSpots | 0.6 | 0.7 | 0.9 | 0.9 | 2.0 | 2.1 |
| SmallSpots | 1.7 | 2.9 | 7.8 | 3.1 | 8.8 | 5.5 | ||
| 3 | 82.3 | BigSpots | 0.9 | 1.0 | 1.5 | 1.2 | 2.6 | 2.9 |
| SmallSpots | 3.0 | 5.5 | 15.3 | 5.7 | 16.5 | 10.0 | ||
| 4 | 24.5 | BigSpots | 0.7 | 0.7 | 1.0 | 1.0 | 2.2 | 2.2 |
| SmallSpots | 2.0 | 3.5 | 9.6 | 3.7 | 10.8 | 6.5 | ||
| 5 | 33.9 | BigSpots | 0.6 | 0.7 | 1.0 | 0.9 | 2.0 | 2.1 |
| SmallSpots | 1.9 | 3.3 | 9.1 | 3.5 | 10.1 | 6.1 | ||