Table 1 Summary of the DVH parameters examined
Parameters | 3DCRT Mean ± SD | IMRT Mean ± SD | RA Mean ± SD | |
|---|---|---|---|---|
PTV | D1% (Gy) | 49.9 ± 0.29 | 48.2 ± 0.17 | 48.4 ± 0.24 |
D99% (Gy) | 40.5 ± 0.43 | 40.3 ± 0.41 | 40.1 ± 0.37 | |
V95% (%) | 96.6 ± 0.61 | 98.9 ± 0.33 | 98.5 ± 0.62 | |
V107% (%) | 13.6 ± 3.7 | 1.02 ± 0.01 | 1.02 ± 0.01 | |
EUD (Gy) | 47.3 ± 0.09 | 46.8 ± 1.45 | 46.4 ± 0.06 | |
HI | 0.1 ± 0.01 | 0.05 ± 0.01 | 0.07 ± 0.01 | |
CI | 0.71 ± 0.02 | 0.89 ± 0.04 | 0.90 ± 0.02 | |
Normal liver | Dmean (Gy) | 17.6 ± 0.82 | 14.2 ± 0.73 | 15.3 ± 1.1 |
V30 (%) | 12.3 ± 1.6 | 12.7 ± 1.3 | 6.90 ± 1.4 | |
Left kidney | Dmean (Gy) | 13.2 ± 1.21 | 15.3 ± 0.63 | 14.1 ± 0.61 |
V20 (%) | 29.9 ± 2.5 | 27.7 ± 1.8 | 22.4 ± 3.6 | |
Right kidney | Dmean (Gy) | 11.9 ± 1.4 | 13.5 ± 0.65 | 12.2 ± 0.90 |
V20 (%) | 19.2 ± 1.1 | 16.2 ± 1.1 | 12.7 ± 1.3 | |
Small bowel | Dmean (Gy) | 13.1 ± 0.83 | 12.4 ± 0.39 | 13.1 ± 0.76 |
V30 (%) | 17.2 ± 0.61 | 16.5 ± 0.67 | 15.6 ± 0.83 | |
V40 (%) | 11.0 ± 0.38 | 9.78 ± 0.93 | 9.15 ± 0.44 | |
Spinal cord | D1% (Gy) | 33.0 ± 0.74 | 31.0 ± 0.29 | 27.8 ± 0.75 |
MU | 250 ± 3.4 | 694 ± 3.9 | 399 ± 6.8 | |