Department of Radiation Oncology, Aichi Cancer Center Hospital, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan.
Department of Radiation Oncology, Shiokawa Hospital Gamma Knife Center, Suzuka, Japan.
Jpn J Radiol. 2024 Apr;42(4):415-423. doi: 10.1007/s11604-023-01511-1. Epub 2023 Nov 18.
This study evaluated the trends in the platform for stereotactic radiotherapy to the brain (SRT), utilizing the open data of the National Database published by the Ministry of Health, Labour, and Welfare.
This study analyzed data from FY2014 to FY2021. The practices included in the study were gamma knife surgery (GKS) and SRT with a linear accelerator (LINAC). The total number of outpatient and inpatient cases in each SRT system was evaluated annually.
From April 2014 to March 2022, the study included 212,016 cases (102,691 GKS and 109,325 LINAC) of the registered 1,996,540 radiotherapy cases. In the first year, 13,117 (54.1%) cases were GKS, and 11,128 (45.9%) were LINAC; after that, GKS decreased, and LINAC increased, reaching the same rate in FY2017. Compared to the first year, the final year showed 11,702 GKS (- 1415 or - 10.8%) and 17,169 LINAC (+ 6041 or + 54.3%), with an increase of 4626 total SRT cases to 28,871 (+ 19.1%). The percentage of outpatient treatment also increased from 4.6 to 11.8% for GKS and from 44.7 to 57.9% for LINAC.
The study found a gradual decrease in the selection of GKS, an increasing trend in the selection of LINAC, and an increase in the overall number of stereotactic irradiations. In particular, the proportion of outpatient treatment increased, indicating that more than half of LINAC was selected for outpatient treatment.
本研究利用厚生劳动省公布的国家数据库的公开数据，评估脑立体定向放射治疗（SRT）平台的趋势。
本研究分析了 2014 财年至 2021 财年的数据。研究中包含的治疗方法为伽玛刀手术（GKS）和使用线性加速器（LINAC）的 SRT。每年评估每个 SRT 系统的门诊和住院病例总数。
从 2014 年 4 月至 2022 年 3 月，本研究共纳入了 1996540 例放射治疗病例中的 212016 例（GKS 为 102691 例，LINAC 为 109325 例）。第一年，13117 例（54.1%）为 GKS，11128 例（45.9%）为 LINAC；此后，GKS 减少，LINAC 增加，到 2017 财年达到相同的比例。与第一年相比，最后一年 GKS 减少了 11702 例（-1415 或-10.8%），LINAC 增加了 17169 例（6041 或 54.3%），总 SRT 病例增加了 4626 例，达到 28871 例（19.1%）。门诊治疗的比例也从 GKS 的 4.6%增加到 11.8%，从 LINAC 的 44.7%增加到 57.9%。
本研究发现 GKS 的选择逐渐减少，LINAC 的选择呈上升趋势，整体立体定向照射的数量增加。特别是，门诊治疗的比例增加，表明超过一半的 LINAC 被选择用于门诊治疗。
