Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 71(3): 225-232 (2022)

資料Materials (Data)

診療用放射線照射装置使用室(RALS室)に併設された診療用CTエックス線撮影装置の単独使用に関するアンケート報告Questionnaire Report on the Independent Use of a Computed Tomography System Installed in the Room for High-dose-rate Remote Afterloading System

1埼玉県立がんセンターSaitama Cancer Center

2埼玉医科大学総合医療センターSaitama Medical University, Saitama Medical Center

3東京ベイ先端医療・幕張クリニックTokyo Bay Makuhari Clinic

4多根総合病院Tane General Hospital

5公益財団法人原子力安全技術センターNuclear Safety Technology Center

6大阪急性期・総合医療センターOsaka General Medical Center

7名古屋市立大学病院Nagoya City University Hospital

8豊橋市民病院Toyohashi Municipal Hospital

9産業医科大学Occupational and Environmental Health University

10徳島大学大学院Tokushima University Graduate School

11近畿大学Kindai University Faculty of Medicine

受付日:2022年6月1日Received: June 1, 2022
受理日:2022年6月14日Accepted: June 14, 2022
発行日:2022年11月15日Published: November 15, 2022


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.

Key words: brachytherapy; image guided brachytherapy (IGBT); remote afterloading system (RALS); computed tomography (CT)

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