Design of genital organ traction bag and its application in radiotherapy

Abstract

Objective To investigate clinical application of self-designed organ traction bag in male genital immobilization during radiotherapy. Methods The male patients in the Department of Radiation Oncology, Suzhou Municipal Hospital from August 2018 to June 2019 were immobilized by using organ traction bag. Clinical effect was evaluated by subjective and objective ways which were the location relationship between contents and reference field under visual observation and fluoroscopy, and setup errors by CBCT images. Results A total of 11 patients were selected, including 3 seminoma, 2 low rectal carcinoma, 2 prostatic carcinoma, 4 pelvic lymph nodes and bone metastases, with mean age 57.18 years old. Patients received 273 times of treatment and 55 times of CBCT verifications in all. Analysis results that the setup errors of the whole group in upper and lower (Vrt), head and foot (Lng), left and right (Lat) directions are less than 0.5 cm, within acceptable clinical threshold. The contents under visual observation and fluoroscopy were not in reference field and were fixed well. Conclusions Organ traction bag provides stable effect on male genital immobilization while taking patients’ privacy and clinical operability into account. It has high clinical application value in radiotherapy involving male genital protection. Key words: Genitalia; Radiotherapy; Immobilization; Radiotherapy dosage