Table 4 p values for one way analysis of variance (ANOVA) with Bonferroni multiple comparison test of the patient-averaged values of dose-volumetric parameters
From: Optimal collimator rotation based on the outline of multiple brain targets in VMAT
Bonferroni adjusted p-values | ||||
|---|---|---|---|---|
Structure | DV parametera | Std-VMAT vs. Colli-VMATPre (40°) | Std-VMAT vs. Colli-VMAT (40°) | Colli-VMATPre (40°) vs. Colli-VMAT (40°) |
Normal brain - PTV | V5 Gyb (cc) | < 0.001 | < 0.001 | < 0.001 |
V12 Gy (cc) | 0.002 | 0.023 | 0.036 | |
V15 Gy (cc) | < 0.001 | < 0.001 | 0.024 | |
Mean dose (Gy) | – | – | – | |
Spinal cord | Maximum dose (Gy) | 0.025 | 0.018 | 0.015 |
Brain stem | Maximum dose (Gy) | – | – | 0.048 |
Optic chiasm | Maximum dose (Gy) | – | 0.043 | 0.033 |
Right optic nerve | Maximum dose (Gy) | 0.025 | 0.035 | 0.016 |
Left optic nerve | Maximum dose (Gy) | 0.023 | 0.036 | – |
Right lens | Maximum dose (Gy) | – | 0.042 | 0.048 |
Left lens | Maximum dose (Gy) | – | – | – |
Right parotid | Mean dose (Gy) | 0.025 | – | – |
Left parotid | Mean dose (Gy) | – | – | – |