Table 4 Comparison of the OAR radiation dose by the two plans (M ± SD)
OAR | Plan | The maximum dose (Gy) | The average dose (Gy) | V 5 (%) | V 10 (%) | V 20 (%) | V 30 (%) | V 40 (%) |
|---|---|---|---|---|---|---|---|---|
Rectum | A | 54.4 ± 0.7 | 35.1 ± 2.5 | 96.6 ± 4.1 | 93.4 ± 6.3 | 89.7 ± 3.2 | 66.1 ± 11.5 | 36.6 ± 6.5 |
B | 54.2 ± 0.6 | 34.3 ± 2.5 | 95.0 ± 4.9 | 91.5 ± 6.3 | 88.0 ± 8.5 | 63.8 ± 9.4 | 34.6 ± 7.2 | |
Small intestine | A | 54.5 ± 1.2 | 28.3 ± 4.9 | 95.2 ± 5.5 | 87.1 ± 9.3 | 70.4 ± 14.7 | 44.1 ± 16.8 | 22.3 ± 9.9 |
B | 53.6 ± 0.8 | 26.2 ± 4.6 | 91.6 ± 7.8 | 83.0 ± 9.4 | 65.8 ± 14.5 | 39.1 ± 15.9 | 18.2 ± 7.5 | |
Bladder | A | 54.8 ± 1.1 | 35.4 ± 1.4 | 100.0 ± 0.0 | 100.0 ± 0.1 | 94.9 ± 4.5 | 60.5 ± 10.4 | 34.5 ± 2.5 |
B | 54.3 ± 0.7 | 34.4 ± 1.2 | 100.0 ± 0.0 | 99.9 ± 0.5 | 92.1 ± 5.1 | 57.2 ± 7.5 | 32.3 ± 2.7 | |
Femoral head | A | 47.1 ± 3.1 | 27.1 ± 3.3 | 99.8 ± 0.6 | 98.6 ± 3.1 | 80.5 ± 16.8 | 37.7 ± 15.1 | 4.2 ± 3.5 |
B | 46.1 ± 3.6 | 26.4 ± 3.0 | 99.8 ± 0.8 | 98.4 ± 4.6 | 79.2 ± 15.6 | 31.9 ± 13.2 | 3.1 ± 2.3 | |
Pelvic BM | A | 55.2 ± 1.6 | 33.3 ± 2.2 | 100.0 ± 0.0 | 98.9 ± 1.0 | 81.3 ± 17.0 | 58.2 ± 8.0 | 28.6 ± 6.5 |
B | 54.6 ± 0.9 | 31.5 ± 2.1 | 99.9 ± 0.2 | 98.7 ± 1.1 | 81.4 ± 5.6 | 52.3 ± 8.8 | 23.4 ± 4.8 |