Table 3.
V 95% and mean dose for target volumes for conventional VMAT plans and dose-painted plans
Structure | V95% (%) | Mean dose (Gy) | ||||
Conventional | Dose painting | p | Conventional | Dose painting | p | |
PTV60 | 99.5 (94.9–99.9) | 99.6 (95.0–100.0) | 0.5 | 60.0 (59.8–61.5) | 60.0 (59.6–61.3) | 0.5 |
BTV62.5 | — | 100.0 (98.2–100.0) | — | — | 62.7 (61.8–63.6) | — |
BTV65 | — | 99.9 (89.6–100.0) | — | — | 64.4 (63.6–64.9) | — |
BTV67.5 | — | 99.8 (74.7–100.0) | — | — | 66.4 (65.1–67.2) | — |
BTV70 | — | 99.2 (61.0–100.0) | — | — | 68.7 (66.9–69.3) | — |
BTV72.5 | — | 99.7 (61.5–100.0) | — | — | 71.1 (69.4–72.2) | — |
BTV75 | — | 99.7 (83.2–100.0) | — | — | 74.1 (72.6–75.2) | — |
BTV77.5 | — | 99.9 (98.8–100.0) | — | — | 76.3 (75.4–77.7) | — |
BTV, biological target volume; PTV, planning target volume; VMAT, volumetric modulated arc therapy.
Median values are shown with the range in parentheses.