Table 1.
Features of treatment plans for the 4 patient cohorts
| Characteristics | Brain | Head and neck | Thorax | Prostate |
|---|---|---|---|---|
| No. of patients | 80 | 128 | 117 | 75 |
| No. of patients with MFO | 45 | 116 | 87 | 6 |
| No. of beams | ||||
| Average | 2.9 | 3.0 | 2.8 | 2 |
| Median | 3 | 3 | 3 | 2 |
| Range | 2-4 | 2-5 | 1-4 | 1-3 |
| Minimum range in patient (cm) | ||||
| Average | 2.9 | 0.6 | 4.2 | 14.7 |
| Median | 2.9 | 0.4 | 4.0 | 15.5 |
| Range | 0.2-7.1 | 0.3-7.4 | 0.2-11.5 | 5.2-18.8 |
| Maximum range in patient (cm) | ||||
| Average | 14.9 | 17.2 | 18.5 | 25.1 |
| Median | 14.6 | 18.3 | 18.9 | 25.0 |
| Range | 9.2-20.8 | 4.8-23.7 | 7.4-28.6 | 22.3-28.6 |
| Volume, cm3 | ||||
| Average | 109 | 244 | 366 | 136 |
| Median | 71 | 218 | 240 | 91 |
| Range | 6-426 | 6-1083 | 13-2911 | 17-599 |
| Prescription dose (Gy) | ||||
| Average | 53.0 | 63.8 | 59.8 | 69.1 |
| Median | 55.7 | 69.3 | 63.8 | 79.1 |
| Range | 14.4-78.4 | 15.6-75.4 | 18.0-78.4 | 24.0-80.8 |
Abbreviation: MFO = multiple field optimization.