在放射治疗学生和合格的放射治疗师中,有风险的器官轮的观察者间变异性
Crispen Chamunyonga1, Kerrie Mengersen2,3, Catriona Hargrave1,4
1School of Clinical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia.
Technical innovations & patient support in radiation oncology
|December 24, 2025
概括
放射治疗的学生和专业人员表现出类似的风险器官轮精度,但学生的变化更大. 这凸显了改善教育框架的必要性,以确保关键结构的一致轮.
科学领域:
- 医学物理 医学物理
- 辐射瘤学 辐射瘤学
- 放射治疗技术 放射治疗技术
背景情况:
- 精确的风险器官 (OAR) 轮测定对于有效的放射治疗规划至关重要.
- 在OAR轮的变化可以影响治疗疗效和患者安全.
- 放射治疗师 (RT) 的教育和培训途径需要持续评估.
研究的目的:
- 评估和比较大学生放射治疗学生和合格的RTs之间的OAR轮的准确性.
- 为了确定特定的OAR或解剖部位,呈现轮挑战.
- 评估经验水平和轮方法对轮准确性的影响.
主要方法:
- 使用了四个计划CT数据集,并使用了21个临床医生验证的OAR轮作为参考.
- 包括2至4年级本科生和合格的RT作为参与者.
- 使用子相似系数 (DICE) 和豪斯多夫距离 (HD) 度量计量分析了440个OAR轮.
主要成果:
- 膀和肺部的OAR显示出高准确度 (平均DICE>0.9).
- 大脑干,心脏和腺的准确性中等 (平均DICE为0.76-0.89).
- 学生表现出比合格的RT更高的轮变异,尽管中位数得分没有显著差异.
结论:
- 在不同的OAR和瘤部位之间存在显著的轮变异.
- 与手动方法相比,指导式轮方法在DICE和HDmax中显示了统计学上显著的改善.
- 这些发现强调了需要一个强大的教育框架来增强OAR轮的一致性.
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