关于日本全身辐射技术变化的多机构调查
Masayasu Kitagawa1, Ryoichi Notake2, Ryuta Nakahara3
1Department of Medical Technology, Toyama Prefectural Central Hospital, 2-2-78 Nishinagae, Toyama, Toyama, 930-8550, Japan. mk@tch.pref.toyama.jp.
Radiological physics and technology
|March 14, 2025
概括
在整个日本,全身辐射 (TBI) 的技术差异存在,特别是在辐射方法,剂量计和屏蔽方面. 为了提高TBI协议的剂量均性和患者安全性,需要标准化.
科学领域:
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
- 放射治疗技术 放射治疗技术
背景情况:
- 全身辐射 (TBI) 是骨髓衰变调节方案的关键组成部分.
- 在TBI治疗中存在重大技术差异可能会影响治疗结果和安全性.
- 了解当前的做法对于确定标准化领域至关重要.
研究的目的:
- 调查和分析日本各机构对全身辐射 (TBI) 实践的技术差异.
- 为了识别辐射方法,体内剂量测量,器官屏蔽和球体利用的差异.
- 强调在TBI交付中需要标准化的需要.
主要方法:
- 一个基于网络的问卷被分发给73个机构在日本使用雪球采样.
- 数据收集的重点是TBI的技术方面,包括辐射技术,剂量测量,屏蔽和螺栓.
- 分析了答案,以对报告的技术进行分类,并确定其变异.
主要成果:
- 60家 (79%) 的机构报告使用长源至表面距离 (SSD) 技术,而10家 (13%) 使用螺旋强度调制辐射疗法 (IMRT).
- 在患者定位,光子束能量 (6 MV,10 MV),体内剂量测量 (17 个机构没有执行) 和玻尿酸使用 (32 个机构没有使用) 中观察到显著变化.
- 基于IMRT的TBI使用CT模拟和6MV光子,而长SSD技术显示出相当大的变化.
结论:
- 在日本各地的TBI交付中存在实质性的技术异质性,特别是在长SSD技术中.
- 缺乏标准化的体内剂量测量,剂量均性策略和器官屏蔽需要注意.
- 需要进一步努力建立TBI的标准化协议,以确保一致和安全的患者护理.
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