Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, 1-7 Yamadaoka, Suita-shi, Osaka, 565-0871, Japan.
Department of Radiation Oncology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka-shi, Osaka, 541-8567, Japan.
J Radiat Res. 2020 Sep 8;61(5):799-816. doi: 10.1093/jrr/rraa047.
This paper describes the ongoing structure of radiation oncology in Japan in terms of equipment, personnel, patient load and geographic distribution to identify and overcome any existing limitations. From December 2014 to July 2017, the Japanese Society for Radiation Oncology conducted a questionnaire based on the Japanese national structure survey of radiation oncology in 2013. Data were analyzed based on institutional stratification by the annual number of new patients treated with radiotherapy per institution. The estimated annual numbers of new and total (new plus repeat) patients treated with radiation were 216 000 and 257 000, respectively. Additionally, the estimated cancer incidence was 862 452 cases with ~25.0% of all newly diagnosed patients being treated with radiation. The types and numbers of treatment devices actually used included linear accelerator (LINAC; n = 880), Gamma Knife (n = 45), 60Co remote afterloading system (RALS; n = 23) and 192Ir RALS (n = 128). The LINAC system used dual-energy functions in 675 units, 3D conformal radiotherapy functions in 785 and intensity-modulated radiotherapy (IMRT) functions in 494. There were 831 Japan Radiological Society/Japanese Society for Radiation Oncology-certified radiation oncologists, 1130.6 full-time equivalent (FTE) radiation oncologists, 2214.6 FTE radiotherapy technologists, 196.6 FTE medical physicists, 183.8 FTE radiotherapy quality managers and 856.7 FTE nurses. The frequency of IMRT use significantly increased during this time. In conclusion, the Japanese structure of radiation oncology has clearly improved in terms of equipment and utility although there was a shortage of personnel in 2013.
本文描述了日本放射肿瘤学的现有结构，包括设备、人员、患者量和地理分布，旨在发现并克服当前存在的局限性。2014 年 12 月至 2017 年 7 月期间，日本放射肿瘤学会基于 2013 年的日本全国放射肿瘤学结构调查开展了一项问卷调查。数据按照机构分层，根据机构内每年接受放疗的新患者人数进行分析。预计每年接受放疗的新患者和总患者（新患者加重复患者）人数分别为 21.6 万和 25.7 万。此外，预计癌症发病率为 86.2452 万例，约 25.0%的新诊断患者接受放疗。实际使用的治疗设备类型和数量包括直线加速器（LINAC；n=880）、伽玛刀（n=45）、60Co 远距离后装治疗机（RALS；n=23）和 192Ir RALS（n=128）。675 台 LINAC 系统具备双能功能，785 台具备 3D 适形放疗功能，494 台具备调强放疗功能。日本放射学会/日本放射肿瘤学会认证的放射肿瘤学家有 831 名，全职等效人员（FTE）为 1130.6 名，放疗技师 2214.6 名，医学物理学家 196.6 名，放疗质量经理 183.8 名，护士 856.7 名。在此期间，调强放疗的使用频率显著增加。总之，尽管 2013 年人员短缺，但日本放射肿瘤学的设备和应用水平明显提高。
