Preliminary application of 3D-printed coplanar template for iodine-125 seed implantation therapy in patients with advanced pancreatic cancer

Figure 2 The procedure for 3D-printed coplanar template-assisted iodine-125 seed implantation and dosimeter analysis. A: Preoperative computed tomography demonstrated a pancreatic uncinate process carcinoma. B: A preoperative treatment planning system was used to program the puncture route and iodine-125 seed distribution. The pseudo green color indicated the designed V90 area, and the red points were the ideal iodine-125 seed position. C: With 3D-printed coplanar template assistance, the implantation needles were inserted in a parallel fashion into the lesion to avoid vessels and traversing the intestine. D: Postoperative dosimeter analysis demonstrated the V90 area (green color region) covering the entire tumor.