Table 2.
The volumes of the dose matrix receiving 50% (3.5 Gy), 100% (7 Gy), 150% (10.5 Gy), and 200% (14 Gy) of point-A doses obtained from the conventional plan and the 3D CT plan according to groups.
| Group 1 (cc) | Group 2 (cc) | P | |
| Conventional plan | |||
| 3.5 Gy | 346.0 ± 81.3 | 375.4 ± 90.7 | 0.14 |
| 7 Gy | 132.4 ± 31.5 | 137.4 ± 27.0 | 0.46 |
| 10.5 Gy | 70.8 ± 18.6 | 69.5 ± 13.5 | 0.72 |
| 14 Gy | 42.4 ± 12.8 | 41.7 ± 8.7 | 0.76 |
| 3D CT plan | |||
| 3.5 Gy | 521.2 ± 127.3 | 685.7 ± 146.0 | < 0.001 |
| 7 Gy | 191.1 ± 46.5 | 266.8 ± 81.3 | < 0.001 |
| 10.5 Gy | 98.7 ± 26.5 | 135.1 ± 39.0 | < 0.001 |
| 14 Gy | 60.2 ± 18.4 | 78.9 ± 22.1 | 0.003 |
*Abbreviations: Group 1 = CTV coverage > 95% isodose line prescribed to point A, Group 2 = CTV coverage < 95% isodose line prescribed to point A.