Retrospective Study
Copyright ©The Author(s) 2024.
World J Radiol. Jul 28, 2024; 16(7): 256-264
Published online Jul 28, 2024. doi: 10.4329/wjr.v16.i7.256
Table 2 The correlation between dose–volume parameter of rectum and rectal bleeding, mean ± SD

Grade 0
Grade 1/2
P value
D 6cc25.40 ± 7.56 Gy (RBE)30.93 ± 6.75 Gy (RBE)0.001a
D 2cc44.54 ± 2.88 Gy (RBE)45.93 ± 1.71 Gy (RBE)0.005a
D 0.2cc49.73 ± 0.98 Gy (RBE)49.80 ± 0.34 Gy (RBE)0.592
V 10 Gy (RBE)10.45 ± 2.72 cc11.89 ± 2.79 cc0.010a
V 20 Gy (RBE)7.46 ± 2.05 cc8.90 ± 2.29 cc0.002a
V 30 Gy (RBE)5.32 ± 1.57 cc6.56 ± 1.78 cc0.001a
V 40 Gy (RBE)3.34 ± 1.05 cc4.15 ± 1.12 cc0.001a
V 50 Gy (RBE)0.18 ± 0.10 cc0.17 ± 0.12 cc0.590