Abstract

Info

Title:: Preliminary application of 3D printing technology in brachytherapy for skin cancer

Author(s):: XUE Tao1; HE Xiaoyang2; SUN Yunchuan1; LIU Guangbo1; WANG Bin1; WANG Peiye1; ZHAO Jianyong3; 1. Department of Radiation Oncology, Cangzhou Hospital of Integrated TCM-WM, Cangzhou 061001, China 2. Department of Nephrology, Cangzhou Peoples Hospital, Cangzhou 061001, China 3. 3D Printing Center, Cangzhou Hospital of Integrated TCMWM, Cangzhou 061001, China

Abstract:: Objective To explore the application of 3D printing technology in the template manufacture of individualized source applicator for high-dose-rate brachytherapy of skin cancer. Methods The preoperative plan was designed based on the positioning CT image of a patient with basal cell carcinoma, and then the 3D template printing was completed according to the patients profile and the preset catheter position in the preoperative plan. After the printed template was placed at the focus and fixed, CT scan was conducted again. The two CT images were fused and matched to determine the degree of coincidence of the catheter position. Results The 3D printed template highly fitted the patients profile, and the source applicator catheter position in the 3D printed template matched and coincided with the planned catheter position, which increased the target coverage rate. Conclusion For the skin cancer lesions with large facial contour and curved surface angle, the brachytherapy using 3D printed template which is designed according to preoperative plan can make the lesion receive the prescription dose better. However, clinical therapeutic effect and side effects need to be further observed.