Table 2 Volumes of Duo2 receiving irradiation dose at each 5 Gy interval with the two delineation methods
Old delineation method (Mean ± Std %) | New delineation method (Mean ± Std %) | P | |
|---|---|---|---|
V5 | 100% | 99.70 ± 1.04% | 0.211 |
V10 | 95.77 ± 9.11% | 94.47 ± 11.48% | 0.695 |
V15 | 92.58 ± 13.60% | 88.55 ± 17.02% | 0.413 |
V20 | 89.56 ± 16.40% | 81.53 ± 22.08% | 0.200 |
V25 | 86.17 ± 19.19% | 71.37 ± 29.11% | 0.065 |
V30 | 80.54 ± 23.51% | 55.76 ± 32.76% | 0.009 |
V35 | 70.91 ± 27.91% | 34.72 ± 26.06% | < 0.001 |
V40 | 55.46 ± 29.79% | 18.69 ± 17.94% | < 0.001 |
V45 | 41.49 ± 24.06% | 8.20 ± 10.77% | < 0.001 |
V50 | 21.60 ± 16.83% | 1.86 ± 3.13% | < 0.001 |
Dmean | 39.22 ± 8.31Gy | 30.38 ± 7.98Gy | 0.001 |
Dmax | 52.91 ± 1.45Gy | 49.58 ± 4.14Gy | 0.002 |
D2cc | 48.64 ± 4.10Gy | 37.90 ± 6.90Gy | < 0.001 |