Table 2 Treatment planning goals and constraints
Structure | Constraints |
|---|---|
PTV | No less than 95% coverage by prescription dose |
Total Normal Lung | V20 ≤ 37% |
|  | V5 ≤ 60% |
|  | MLD (Mean Lung Dose) ≤ 20Gy |
Spinal Cord | Dmax < 50 Gy |
Heart | Dmean< 26 Gy |
Esophagus | Dmean <34Gy |