[1]李定宇,戴建荣.统计过程控制方法在加速器质量保证中的应用[J].国际放射医学核医学杂志,2009,33(1):54-58.[doi:10.3760/cma.j.issn.1673-4114.2009.01.054]
　LI Ding-yu,DAI Jian-rong.The application of statistical process control in linac quality assurance[J].International Journal of Radiation Medicine and Nuclear Medicine,2009,33(1):54-58.[doi:10.3760/cma.j.issn.1673-4114.2009.01.054]
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《国际放射医学核医学杂志》[ISSN:1673-4114/CN:12-1381/R]

卷:
33
期数:
2009年第1期
页码:
54-58
栏目:
质量控制
出版日期:
1900-01-01

文章信息/Info

Title:
The application of statistical process control in linac quality assurance
作者:
李定宇1;  戴建荣2
1. 武汉大学物理科学与技术学院放射医学专业, 武汉 430072;
2. 中国医学科学院肿瘤医院放射治疗科, 北京 100021
Author(s):
LI Ding-yu1;  DAI Jian-rong2
1. Department of Radiation Medicine, Physics Science and Technology College, Wuhan University, Wuhan 430072, Chino;
2. Department of Radiation Oncology, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing 100021, China
关键词:
质量控制; 加速器; 统计过程控制法
Keywords:
Quality control; Accelerator; Statistical process control
DOI:
10.3760/cma.j.issn.1673-4114.2009.01.054
摘要:
目的 应用统计过程控制(SPC)方法改进加速器质量保证(QA)工作。方法 应用SPC方法对QA数据设置控制界限,绘制均值-极差控制图,区分随机误差和系统误差。为了方便应用,用Visual Basic编程开发了SPC的质量控制软件QA-MANAGER。针对6MVX射线的输出剂量检测项目,应用SPC方法分析了两个案例。结果 在案例中,SPC方法成功检测到发生的系统误差。结论 在加速器QA中使用SPC方法,有助于发现系统偏差,对异常趋势提出预警,以便及时采取措施,消除异常,恢复过程的稳定,从而达到控制质量的目的。
Abstract:
Objective To improving linac quality assurance (QA) program with statistical process control (SPC) method. Methods SPC is applied to set the control limit of QA data, draw charts and differentiate the random and systematic errors. A SPC quality assurance software named QA_MANAGER has been developed by VB programming for clinical use. Two clinical cases are analyzed with SPC to study daily output QA of a 6MV photon beam. Results In the clinical case, the SPC is able to identify the systematic errors. Conclusion The SPC application may be assistant to detect systematic errors in linac quality assurance thus it alarms the abnormal trend to eliminate the systematic errors and improves quality control.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2008-10-08。
通讯作者:戴建荣(E-mail:dai_jianrong@163.com)
更新日期/Last Update: 1900-01-01