Table 3. Dose parameters for the normal lung tissue.
| Mean (Std. Dev.) | P value | |||||
| Central | Centralno | Peripheral | Central vs. Centralno | Central vs. Peripheral | Centralno vs. Peripheral | |
| Total lung | ||||||
| V5 | 20.6 (4.49) | 28.8 (13.4) | 21.3 (2.67) | 0.0085 | 0.4843 | 0.0139 |
| V10 | 14.2 (3.71) | 18.5 (10.9) | 13.5 (2.94) | 0.0775 | 0.4961 | 0.0444 |
| V20 | 9.21 (3.48) | 10.6 (6.17) | 7.21 (2.91) | 0.3342 | 0.0345 | 0.0251 |
| MLD (Gy) | 5.80 (1.71) | 6.96 (3.61) | 5.10 (1.19) | 0.1607 | 0.1129 | 0.0273 |
| Ipsilateral lung | ||||||
| V5 | 33.3 (10.6) | 39.3 (13.7) | 32.4 (6.79) | 0.0665 | 0.6975 | 0.0400 |
| V10 | 27.1 (8.78) | 31.3 (12.7) | 24.0 (5.55) | 0.1465 | 0.1164 | 0.0191 |
| V20 | 18.1 (7.50) | 20.7 (11.8) | 12.8 (4.88) | 0.3621 | 0.0062 | 0.0063 |
| MLD (Gy) | 9.64 (3.29) | 11.5 (5.74) | 7.59 (1.89) | 0.1605 | 0.0049 | 0.0043 |
| Contralateral lung | ||||||
| V5 | 8.53 (6.28) | 17.5 (14.9) | 8.34 (7.57) | 0.0105 | 0.9197 | 0.0136 |
| V10 | 1.82 (2.52) | 6.09 (10.9) | 1.20 (2.18) | 0.0847 | 0.3971 | 0.0520 |
| V20 | 0.48 (0.73) | 1.33 (2.24) | 0.53 (1.03) | 0.1487 | 0.9020 | 0.5006 |
| MLD (Gy) | 1.71 (0.60) | 2.69 (1.93) | 1.74 (0.37) | 0.0261 | 0.8272 | 0.0291 |
Std. Dev.: standard deviation. Central: central lesions for which all the dose constraints were met. Centralno: central lesions for which ≥1 dose constraints were not met. Peripheral: peripheral lesions. V5, V10, and V20: percentage of volume receiving 5, 10, and 20 Gy, respectively. MLD: mean lung dose.