CT应用质量检测结果与分析  

Testing results and analysis of application quality of CT

作　　者：庄晓璇 刘鸿翔 袁田 尚敬轩 杨可邦 胡红波 ZHUANG Xiao-xuan;LIU Hong-xiang;YUAN Tian(Station for Supervision and Inspection of Drug and Instrument,Guilin Joint Logistic Support Center,Guangzhou 510080,China)

机构地区：[1]桂林联勤保障中心药品仪器监督检验站

出　　处：《中国医学装备》2019年第10期97-99,共3页China Medical Equipment

基　　金：国家重点基础研究发展计划(973计划)(2016YFC0103400)“医学成像与放射治疗中的质量控制体模研发”

摘　　要：目的:分析与探讨医疗机构大型医疗设备X射线计算机断层扫描(CT)应用质量管理现状,并提出针对性建议。方法:按照国家标准《X射线计算机断层摄影装置质量保证检测规范》,采用CT性能体模Catphon 500等检测工具,对CT设备的CT加权剂量指数、定位光精度、层厚偏差、CT值线性和对比度标度、空间分辨力、密度分辨力、场均匀性、噪声和水的CT值9项性能进行检测。选取2018年南部地区6个省份31家医疗机构在用的52台CT设备,应用质量检测中的检测数据和检测结果进行统计与分析,针对CT质量管理现状提出重视医疗设备日常维护和加强专业人才队伍建设的建议。结果:52台受检设备中,16台CT设备所有检测均合格(占30.80%);结合性能检测结果和临床摄片评估结果,不合格CT设备有3台(占5.77%);CT设备缺乏日常维护与调试和技术人员专业水平低,是造成CT质量检测不合格的主要原因。结论:医疗机构应重视医疗设备日常维护和调试,制定CT的保养和校准周期,建立规范化的操作流程,同时加强专业人才队伍建设,提高专业水平。Objective:To analyze and discuss the current situation of application quality managementof X-ray computed tomography(CT)of large medical equipment in medical institutions and put forward some corresponding suggestions for them.Methods:According to the national standard<The quality assurance test specification of X-ray computed tomography device>,adopting the CT performance phantom(Catphon 500)and other detection tools to implement detection for 9 performances of CT value of CT equipment included CT weighted dose index,precision of location light,deviation of thickness,linear of CT value,contrast scale,resolving ability of space,resolving ability of density,field homogeneity,noise and water.52usedCTdevicesof 31 medical institution from 6 southern provinces in 2018 were selected,and detection data and detection results of them in quality detection were applied to implement statistics and analysis.Andaimed at the current situation of CT quality management to put forward some suggestions that paid attention to the routine maintenance for medical equipment and strengthened the construction of professional team.Results:In 52 tested CT devices,all of detection items of16 CT equipment were qualified(accounting for 30.80%).Combined with the results of performance testing and the results of clinical photographassessment,there were 3 CT devices were unqualified(accounting for 5.77%).The lack of routine maintenance and debugging of CT devicesand the low professional level of technical personnel were the main reasonsthat leaded to the disqualification of quality testing of CTdevices.Conclusion:The medical institution should pay more attention to the routine maintenance and debugging of medical equipment,and formulate the cycle of maintenance and calibration of CT equipment,and establish the standardized operation processof CT equipment.At the same time,the construction of professional talent team should be strengthened so asto improve their professional level.

关 键 词：大型医疗设备 X射线计算机断层扫描 应用质量检测 质量保证 

分 类 号：R812[医药卫生—放射医学]