用统计过程控制技术进行头患者治疗的质量管理
Michael J Sandford1, Jared G Steel2, Josie R Goodworth1
1Mid North Coast Cancer Institute, Mid North Coast Local Health District Coffs Harbour Health Campus, Coffs Harbour, NSW, 2450, Australia.
Physical and engineering sciences in medicine
|October 15, 2024
概括
统计过程控制 (SPC) 技术有效地监测了使用形光束CT (CBCT) 数据超过12年的放射治疗患者设置错误. 这种质量管理方法确定了趋势,并减少了随机设置错误,甚至注意到了流行病的影响.
科学领域:
- 医学物理 医学物理
- 辐射疗法质量保证 辐射疗法质量保证
- 统计过程控制 统计过程控制
背景情况:
- 放射治疗患者的治疗涉及复杂的过程,容易导致工作人员和设备的错误.
- 圆束CT (CBCT) 为患者定位提供了一个关键的治疗前验证步骤.
- 统计过程控制 (SPC) 是一种经过验证的质量管理工具,用于各种行业的错误减轻.
研究的目的:
- 评估SPC技术对监测头部和部放射治疗过程和设备变化的有用性.
- 将SPC方法应用于CBCT结果的纵向数据集,以进行以质量为中心的分析.
主要方法:
- 使用个人和移动范围 (XmR) 和指数加权移动平均 (EWMA) SPC技术.
- 分析了12年的CBCT数据,这些数据来自对头癌患者进行的一项以质量为重点的纵向研究.
- 建立基于追溯数据分析的前性过程控制限制.
主要成果:
- 在12年的研究期间,SPC技术对过程变化和趋势表现出敏感性.
- 观察到需要纠正的患者设置错误的随机组件减少.
- 确定了稳定的系统错误组件,并注意到与COVID-19大流行相关的错误增加.
结论:
- SPC是监测放射治疗过程和检测患者设置精度变化的宝贵工具.
- 该研究确定了用于放射治疗质量保证的前性使用的过程控制极限.
- 对SPC的回顾性应用突出了挑战,但证实了其在识别错误趋势和影响方面的实用性,例如在COVID-19大流行期间.
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