Table 3.
Summary of dosimetric results for OARs (
± S)
| OARS | Parameter | Plan1(CT1) | Plan1(CT2) | Plan1 + 2(CT2) |
|---|---|---|---|---|
| Spinal cord | Dmax(Gy) | 41.9 ± 0.8 | 43.5 ± 2.9 | 42.1 ± 1.1 |
| D1cc(Gy) | 39.6 ± 1.1 | 40.7 ± 2.4 | 40.3 ± 1.6 | |
| Brainstem | Dmax(Gy) | 57.9 ± 1.7 | 58.4 ± 3.4 | 57.2 ± 2.7 |
| D5(Gy) | 48.8 ± 3.4 | 49.5 ± 3.1 | 49.3 ± 2.7 | |
| Right parotid | Dmean(Gy) | 32.6 ± 3.8 | 32.4 ± 1.9 | 32.0 ± 2.4 |
| V30(%) | 47.7 ± 10.6 | 48.5 ± 6.6 | 46.7 ± 6.4 | |
| Left parotid | Dmean(Gy) | 32.7 ± 2.3 | 33.9 ± 5.9 | 33.1 ± 3.8 |
| V30(%) | 48.1 ± 6.7 | 51.0 ± 20.6 | 48.9 ± 13.9 | |
| Right eye | Dmax(Gy) | 21.1 ± 10.2 | 21.0 ± 8.3 | 21.8 ± 6.3 |
| Left eye | Dmax(Gy) | 20.1 ± 9.9 | 21.5 ± 8.3 | 22.2 ± 5.6 |
| Right optic nerve | Dmax(Gy) | 42.3 ± 13.5 | 45.5 ± 13.2 | 44.1 ± 12.4 |
| Left optic nerve | Dmax(Gy) | 40.1 ± 15.0 | 39.8 ± 12.0 | 36.9 ± 12.8 |
| Right lens | Dmax(Gy) | 6.0 ± 1.0 | 5.8 ± 1.1 | 5.8 ± 0.9 |
| Left lens | Dmax(Gy) | 6.0 ± 1.0 | 5.8 ± 1.2 | 5.9 ± 1.0 |
*Statistical significance with P > 0.05.