Fig. 1

TPS of RISI for pre-plan and postoperative dose verification. (A) Preoperative TPS showed the planned puncture path. Red lines represent the tumor’s contour. (B) Preoperative dose volume histograms, D90 = 113.7 Gy. (C) The distribution of 125I seeds radiation dose after RISI. (D) Postoperative dose volume histograms, D90 = 127.4 Gy