Questionnaire Report on the Independent Use of a Computed Tomography System Installed in the Room for High-dose-rate Remote Afterloading System

Abstract

In Japan, the number of patients treated with high-dose-rate brachytherapy is small per facility. The use of radiation equipment in RALS rooms is restricted to the acquisition of images required for high-dose-rate brachytherapy, which is a treatment purpose permitted by the current domestic law. The difficulty of installing dedicated CT scanner in RALS rooms has been a stumbling block to the widespread use of IGBTs.

Therefore, we conducted a questionnaire survey to determine the effective use of CT in RALS rooms. Because the RALS room CT is used for a limited number of hours and days, there were many requests for its use in CT imaging for treatment planning of external irradiation.

We concluded that the availability of RALS room CT, in addition to image acquisition for brachytherapy, will lead to the further spread of IGBTs in Japan.