Table 1 The dose-volume histogram parameters for the cropped planning and clinical target volumes (PTVin and CTVin)
3D-CRT | RA | E-VMAT | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Planned | Perturbed | Planned | Perturbed | Planned | Perturbed | |||||
5fr | 15fr | 5fr | 15fr | 5fr | 15fr | |||||
PTVin | V95% | 97.5 ± 1.5 | 97.3 ± 1.4 | 97.2 ± 1.4 | 98.0 ± 0.5 | 96.9 ± 0.9* | 96.8 ± 0.9* | 97.5 ± 0.9 | 96.0 ± 1.1 | 96.0 ± 1.1 |
D1cc | 108.0 ± 1.1 | 107.5 ± 1.0 | 107.5 ± 1.1 | 106.3 ± 0.9 | 106.0 ± 1.0 | 106.0 ± 1.1 | 104.6 ± 0.5 | 104.4 ± 0.5 | 104.1 ± 0.8 | |
Min1cc | 91.9 ± 1.0 | 90.8 ± 2.3 | 90.6 ± 2.3 | 91.6 ± 1.0 | 88.5 ± 3.8 | 88.4 ± 3.8 | 85.0 ± 5.3 | 80.6 ± 6.0 | 80.5 ± 6.0 | |
CI | 1.41 ± 0.14 | 1.37 ± 0.14 | 1.37 ± 0.14 | 1.16 ± 0.04 | 1.12 ± 0.03* | 1.12 ± 0.03* | 1.15 ± 0.07 | 1.11 ± 0.06 | 1.10 ± 0.07 | |
HI | 10.9 ± 1.5 | 10.8 ± 1.5 | 10.8 ± 1.4 | 9.5 ± 0.6 | 10.1 ± 0.8 | 10.1 ± 0.9 | 8.6 ± 1.4 | 10.4 ± 1.8 | 10.2 ± 1.8 | |
CTVin | V95% | 98.8 ± 0.9 | 98.9 ± 0.6 | 98.9 ± 0.6 | 98.9 ± 0.5 | 98.9 ± 0.5 | 99.0 ± 0.5 | 99.0 ± 0.3 | 98.6 ± 0.5 | 98.6 ± 0.5 |
D1cc | 107.7 ± 1.2 | 107.4 ± 1.0 | 107.3 ± 1.2 | 106.2 ± 1.0 | 105.9 ± 1.0 | 105.9 ± 1.1 | 104.3 ± 0.4 | 104.3 ± 0.5 | 103.9 ± 0.7 | |
Min1cc | 92.8 ± 1.1 | 92.7 ± 0.9 | 92.6 ± 1.0 | 92.6 ± 1.4 | 92.6 ± 1.5 | 92.5 ± 1.5 | 92.3 ± 1.1 | 91.6 ± 0.9 | 91.4 ± 0.9 | |
CI | 1.75 ± 0.25 | 1.71 ± 0.24 | 1.70 ± 0.24 | 1.43 ± 0.13 | 1.39 ± 0.11* | 1.38 ± 0.11* | 1.43 ± 0.17 | 1.37 ± 0.15 | 1.36 ± 0.15 | |
HI | 9.9 ± 1.6 | 9.6 ± 1.5 | 9.6 ± 1.5 | 8.9 ± 0.6 | 8.6 ± 0.6 | 8.6 ± 0.6 | 6.8 ± 0.8 | 7.5 ± 0.9 | 7.3 ± 0.7 | |