Shibuya Hitoshi, Tsujii Hirohiko
JASTRO Database Committee, Department of Radiology, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan.
Int J Radiat Oncol Biol Phys. 2005 Aug 1;62(5):1472-6. doi: 10.1016/j.ijrobp.2004.12.082.
To ascertain the basic structural characteristics of radiation oncology facilities in Japan, we conducted a national survey on their status in 2003. The aims of the survey included the following: present status of radiation treatment facilities, equipment, personnel, patient loads, and other factors.
A mail survey verified each potential facility delivering megavoltage radiation therapy and collected data on treatment devices, other equipment, personnel, new patients, and so on. Responses were obtained from 100% of potential facilities.
A total of 726 facilities delivered radiation therapy, with 859 megavoltage devices, 203 RALS (remote after-loading system) and other radioactive sources, with 941 FTE (full-time employee) radiation oncologists including 369 FTE Japanese Society of Therapeutic Radiation Oncology-certified radiation oncologists, 1555 FTE radiation therapists, and 70 FTE physicists in 2003. Megavoltage devices included two heavy ion units and four proton units. In total, there were 149,793 new patients and 146,351 (98%) by external irradiation; 4379 (3%) were treated by brachytherapy with or without external irradiation. Eighty-six percent of the facilities had treatment-planning computers, but 4% had no treatment-planning capability. Six percent (44 facilities) of all facilities used hyperthermia, 12% (85 facilities) intraoperative radiation therapy, and 2% (12 facilities) intensity-modulated radiation therapy.
Facilities surveys continue to provide a source of census data on radiation oncology in Japan, allowing comparisons among facility groups and over time.
为确定日本放射肿瘤学设施的基本结构特征，我们于2003年针对其现状开展了一项全国性调查。该调查的目的包括以下方面：放射治疗设施、设备、人员、患者数量及其他因素的现状。
通过邮件调查核实了每家提供兆伏级放射治疗的潜在设施，并收集了有关治疗设备、其他设备、人员、新患者等方面的数据。所有潜在设施均回复了调查。
共有726家设施提供放射治疗，配备859台兆伏级设备、203套远程后装系统（RALS）及其他放射源，2003年有941名全职等效（FTE）放射肿瘤学家，其中包括369名经日本放射治疗肿瘤学会认证的FTE放射肿瘤学家、1555名FTE放射治疗师和70名FTE物理学家。兆伏级设备包括两台重离子装置和四台质子装置。总共有149,793名新患者，其中146,351名（98%）接受外照射治疗；4379名（3%）接受了近距离放射治疗，无论是否联合外照射。86%的设施拥有治疗计划计算机，但4%的设施没有治疗计划能力。所有设施中有6%（44家）使用热疗，12%（85家）使用术中放射治疗，2%（12家）使用调强放射治疗。
设施调查持续为日本放射肿瘤学提供普查数据来源，有助于对不同设施组进行比较以及随时间推移进行对比。
