Table 4.

Rectal dose statistics according to radiotherapy technique and use of balloon

^*Comparison between no balloon and balloon of 3D-CRT/IMRT with Wilcoxon rank sum test; ^†Comparison between no balloon of IMRT and balloon of 3D-CRT with Wilcoxon rank sum test.

The rectal percent volumes receiving 65 Gy, 60 Gy, 50 Gy, and 45 Gy are presented as V_65Gy, V_60Gy, V_50Gy, and V_45Gy, respectively.

3D-CRT, three-dimensional conformal radiotherapy; IMRT, intensity-modulated radiotherapy; IQR, InterQuartile Range; D_mean, mean dose.