Figure 1

Dosimetry comparison for the PTV of RP group and NP group. VRX of the NP group was higher than that of the RP group (t = − 4.57, P < 0.01) (a). CI and HI of NP group was higher than that of RP group (t = − 12.99, P < 0.01; t = − 6.14, P < 0.01) (b). V55 and Dmean of the RP group were higher than that of NP group (t = − 6.14, P < 0.01; t = − 6.14, P < 0.01) (a,c). *P < 0.05.