Table 1.

Constraints for planning target volume and organs at risk.

Structure	Constraints
planning target volume	V45Gy ≦ 1CC;V40.05Gy ≧ 95%
spinal cord	Dmax ≦ 45 Gy
right lung	V16.5Gy ≦ 950CC;V18Gy ≦ 37%
left lung	V16.5Gy ≦ 950CC;V18Gy ≦ 37%
heart	V42Gy ≦ 15CC