Establishment of radiotherapy collaboration system in Hiroshima

'Hiroshima High-Precision Radiotherapy Cancer Center' was opened in October 2015, and for its effective practical utilization, the establishment of a radiotherapy collaboration system among all cancer diagnosis collaboration core hospitals in Hiroshima is important. A radiotherapy collaboration promotion working group meeting was held in November 2017. The first report was 'Survey on the actual condition of radiotherapy system.' Looking at yearly transition from 2009 to 2016, the number of doctors remains flat, but the number of medical physicists, radiological technologists, and nurses in charge of radiotherapy has significantly increased, showing that the radiotherapy system in the prefecture tends to advance. The number of new radiotherapy patients in Hiroshima Prefecture exceeded 5,000, and the total number of radiotherapy patients exceeded 6,000. While brachytherapy, such as intracavitary and interstitial irradiation, has decreased, the number of high-precision radiotherapy, such as stereotactic body radiotherapy and intensity-modulated radiotherapy, has increased. The report also included the state of management after the establishment of the center, distinctive treatment that the center performs, and efforts for human resource development and technical support work. This paper also described future issues. (A.O.)