Table 3.
Comparative dosimetric results for pelvic OARs. VMAT (X) vs PBT (P+).
| Vmean (cm3 ± SD) | V5 Gy |
V10 Gy |
V15 Gy |
V25 Gy |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| X | P+ | p | X | P+ | p | X | P+ | p | X | P+ | p | |
| Bladder (274.7 ± 162.0) | 268.4 ± 152.1 | 127.5 ± 75.4 | <0.001 | 185.6 ± 102.2 | 99.0 ± 63.2 | <0.001 | 109.8 ± 62.1 | 78.6 ± 53.1 | <0.001 | 12.0 ± 12.2 | 6.6 ± 13.7 | 0.22 |
| Pelvic bones (1660 ± 314.5) | 809.4 ± 204.7 | 420.9 ± 160.3 | <0.001 | 593.8 ± 166.2 | 338.1 ± 125.0 | <0.001 | 333.2 ± 93.6 | 228.4 ± 66.0 | <0.001 | 30.6 ± 12.8 | 38.4 ± 15.9 | 0.09 |
| Bowel bag (964.4 ± 403.2) | 712.8 ± 329.7 | 247.1 ± 132.3 | <0.001 | 461.5 ± 230.9 | 182.9 ± 102.9 | <0.001 | 215.3 ± 136.4 | 141.2 ± 83.6 | <0.001 | 17.9 ± 18.2 | 23.6 ± 26.3 | <0.05 |