北京市327台DR设备性能质量控制检测与分析  

Performance Quality Control Test and Analysis of 327 DR Equipment in Beijing

作　　者：张文龙 侯艺威[1] 柳渊[1] 王宇坤 李宝欣 董硕[1] ZHANG Wenlong;HOU Yiwei;LIU Yuan;WANG Yukun;LI Baoxin;DONG Shuo(Department of Medical Engineering,Xuanwu Hospital,Capital Medical University,Beijing 100053,China;Beijing Municipal Bureau of Disease Prevention and Control,Beijing 101119,China)

机构地区：[1]首都医科大学宣武医院医学工程处,北京100053 [2]北京市疾病预防控制局,北京101119

出　　处：《中国医疗设备》2024年第12期16-21,共6页China Medical Devices

基　　金：工业和信息化部产业技术基础公共服务平台项目(2021-0179-1-1)。

摘　　要：目的对北京市327台DR设备进行质量控制检测,分析检测数据的稳定性,提升DR质控管理水平。方法使用多功能剂量仪Unfors Raysafe X2和低对比度测试卡、空间分辨力测试卡等检测模体,按照WS 76-2020中规定的检测方法,对DR设备的通用检测项目和专用检测项目进行检测,并使用Minitab 17.0软件对设备性能的稳定性进行分析。结果327台DR设备质量控制检测的合格率为98.17%,不合格情况共涉及3个性能指标,分别是光野与照射野四边的偏离、响应均匀性和有用线束垂直度偏离。大部分检测项目的质量控制处于Ⅰ级水平,管电压指示的偏离(大焦点)质量控制处于Ⅲ级水平。结论通过对DR设备性能质量控制检测数据进行稳定性分析,发现被检测的设备在光野与照射野四边的偏离、响应均匀性、有用线束垂直度偏离以及管电压指示的偏离(大焦点)这些重要指标上仍有提升空间。本研究的重要结果可以为DR设备质量管理提供科学依据和合理建议,为设备稳定运行提供保障基础,确保DR设备的影像诊断质量和辐射安全。Objective To conduct quality control test on 327 DR equipment in Beijing,analyze the stability of the test data,and enhance the level of DR quality control management.Methods Using the multifunctional dosimeter Unfors Raysafe X2,low contrast test card,spatial resolution test card,and other detection models,the universal and specialized detection items of DR equipment were tested using the detection methods specified in the WS 76-2020 standard,and the stability of equipment performance was analyzed using Minitab 17.0 software.Results The qualification rate of 327 DR equipment quality control tests was 98.17%.The unqualified condition involved three performance indicators,namely the deviation between the light field and the four sides of the irradiation field,response uniformity,and useful beam deviation from perpendicularity.The quality control of most test items were at levelⅠ,and the quality control of deviation(large focus)of tube voltage indication was at levelⅢ.Conclusion Through the stability analysis of the performance quality control test data of DR equipment,it is found that the tested equipment still has room for improvement in such important indicators as the deviation between the light field and the four sides of the irradiation field,response uniformity,useful beam deviation from perpendicularity and deviation(large focus)of tube voltage indication.The important results of this study can provide scientific basis and reasonable suggestions for the quality management of DR equipment,provide a guarantee basis for the stable operation of the equipment,and ensure the image diagnosis quality and radiation safety of DR equipment.

关 键 词：数字X射线摄影(DR) DR设备 质量控制检测 性能指标 稳定性分析 

分 类 号：R197.39[医药卫生—卫生事业管理]