Table 2.
Characteristics of the online adapted plans
| Liver | Lung | Lymph nodes | Pancreas | Prostate | |
|---|---|---|---|---|---|
| Adapted fractions (%) | 93.3 | 84.4 | 82.1 | 92.0 | 69.4 |
| Mean BOT (min) | 7.1 | 9.1 | 4.5 | 6.2 | 1.9 |
| Min. BOT (min) | 4.9 | 4.5 | 2.5 | 3.2 | 1.1 |
| Max. BOT (min) | 11.3 | 17.7 | 9.4 | 9.3 | 4.4 |
| Mean number of beams | 12 | 10 | 16 | 15 | 14 |
| Min. number of beams | 9 | 8 | 9 | 13 | 9 |
| Max. number of beams | 16 | 15 | 19 | 17 | 21 |
| Mean number of segments | 33 | 26 | 72 | 70 | 54 |
| Min. number of segments | 13 | 9 | 12 | 46 | 33 |
| Max. number of segments | 54 | 40 | 100 | 95 | 129 |
| Mean MU | 4269.2 | 5439.9 | 2652.2 | 3688.4 | 1139.4 |
| Min. MU | 2950.3 | 2675.2 | 444.3 | 1906.7 | 649.0 |
| Max. MU | 6776.0 | 10,612.0 | 5607.9 | 5547.1 | 2624.5 |
| Mean VPTV (cm3) | 38.4 | 15.2 | 65.5 | 251.1 | 114.7 |
| Min. VPTV (cm3) | 7.3 | 3.9 | 1.9 | 59.6 | 67.9 |
| Max. VPTV (cm3) | 109.9 | 32.0 | 291.3 | 455.8 | 192.6 |
BOT = beam-on time, MU = number of monitor units, VPTV = volume of the PTV