TABLE I.
Patient cohort specifications and applied plan corrections (at 1.5 T magnetic field). Patient 1 plan includes no boost fields.
| Patients | Prescribed dose (Gy) | Target volume (cm3) | Average range (mm) | Number of beams | Feasible margin reduction (mm) | Isocenter shift (mm) | Gantry rotation (degrees) |
|---|---|---|---|---|---|---|---|
| 1-Prostate | 50.0 | 129.0 | 269.0 | 2 | 5.0 | 5.0–19.0 | — |
| 2-Prostate | 78.0 | 89.1 | 254.5 | 4 | 5.0 | 5.0–19.0 | — |
| 3-Liver | 52.5 | 306.6 | 140.5 | 2 | 4.0 | 0.0–4.0 | — |
| 4-Liver | 58.05 | 138.6 | 172.0 | 2 | 4.0 | 0.0–15.0 | — |
| 5-Lung | 66.0 | 318.0 | 178.5 | 2 | 10.0 | 15.0 | 10 (all) |
| 6-Lung | 48.0 | 2.3 | 80.0 | 2 | 10.0 | 6.0 | — |
| 7-Brain | 52.2 | 11.2 | 122.3 | 4 | 2.0 | 10.0 | 10 (SA) |
| 8-Skull base | 50.4 | 61.2 | 128.7 | 6 | 4.0 | 0.0–13.0 | — |
| 9-Spine | 50.4 | 46.9 | 103.0 | 1 | 5.0 | — | — |