Table 1.
Specific details of the IMRT and VMAT treatment plans for each 200-cGy fraction. (Beam energy is given in megavolts (MV) following the conventions of radiotherapy. For these experiments, one monitor unit represents the amount of beam needed to deliver an absorbed dose of 0.01 Gy to a point at the depth of dose maximum in muscle.)
| Modality | Delivery configuration |
Monitor units per fraction |
Approximate total treatment time (s) |
|---|---|---|---|
| IMRT | (beam angle : energy) | 694 | 300 |
| 225° : 6 MV | |||
| 260° : 18 MV | |||
| 295° : 6 MV | |||
| 330° : 6 MV | |||
| 30° : 6 MV | |||
| 65° : 6 MV | |||
| 100° : 18 MV | |||
| 135° : 6 MV | |||
| VMAT | (arc rotation : energy) | 180 | |
| 225° – 135° : 6 MV | 551 | ||
| 135° – 225° : 6 MV | 577 |