IMRT ± SD

3DCRT ± SD

P-value

V25 (%)

39.4 ± 11.17

39.4 ± 14.6

0.477

V40 (%)

24.83 ± 6.8

23.97 ± 8.97

0.593

V60 (%)

12.22 ± 3.12

15.44 ± 7.43

0.214

V70 (%)

5.83 ± 1.85

12.03 ± 6.49

0.008