| GKE | VMAT (P Value) | IMPT (P Value) | P value VMAT vs. IMPT |
PTV coverage (%) | 98.9 ± 2.4 | 99.4 ± 0.6 (0.451) | 96.8 ± 2.1 (0.060) | 0.005 |
CI | 0.67 ± 0.11 | 0.68 ± 0.08 (0.122) | 0.71 ± 0.12 (0.440) | 0.519 |
GI | 2.8 ± 0.2 | 3.9 ± 0.7* (<0.001) | 5.2 ± 1.7* (0.003) | 0.003 |
HI (%) | 13.7 ± 1.5 | 4.6 ± 1.7* (<0.001) | 4.8 ± 1.7* (<0.001) | 0.265 |
Delivery time (min) | 53.7 ± 14.8 | 3.5 ± 0.8* (<0.001) | 4.7 ± 2.0* (<0.001) | 0.059 |
Normalization (%) | 49.0 ± 2.0 | 78.2 ± 4.2* (<0.001) | 80.9 ± 4.1* (<0.001) | 0.606 |
Irradiated volume/PTV | 4.1 ± 0.8 | 5.7 ± 1.1* (0.008) | 7.5 ± 4.5* (0.031) | 0.219 |
Low dose volume/PTV | 12.0 ± 1.9 | 20.2 ± 8.3* (0.022) | 20.6 ± 19.6 (0.189) | 0.905 |