3-D Conformal RT Tomotherapy P value Heart V5 % 21 99 <0.001   V30 % 8 11 >0.05 Lung V5 % 36 97 <0.001   V20 % 18 16 >0.05 Contralateral Breast Gy 1.2 6.2 <0.001

Table 2: The dose distributions in organ at risc.