2016-2017年洛阳市CT机质量控制和放射防护检测结果分析  

Analysis of CT machine quality control and radiation protection test results in Luoyang from 2016 to 2017

作　　者：王新爱 汪海生[1] 李汝珍 李哲 WANG Xinai;WANG Haisheng;LI Ruzhen;LI Zhe(Luoyang Center for Disease Control and Prevention,Luoyang 471000 China;Luoyang Municipal Bureau of Health and Family Planning Supervision)

机构地区：[1]洛阳市疾病预防控制中心,河南洛阳471000 [2]洛阳市卫生计生监督局

出　　处：《中国辐射卫生》2020年第1期26-30,共5页Chinese Journal of Radiological Health

摘　　要：目的了解洛阳市CT机质量控制检测指标情况和CT机机房防护状况。方法 2016年抽查洛阳市45家医院的55台CT机、2017年抽查洛阳市32家医院的37台CT机,进行了质量控制检测和机房周围辐射水平检测,并对检测结果进行分析评价。结果质量控制检测结果,2016年检测合格率63.60%,2017年检测合格率89.20%,差异有统计学意义(P <0.05);2016年一级、二级、三级医院检测合格率均在60.00%~65.52%之间,2017年一级医院检测合格率78.90%,二级和三级医院检测合格率均为100.00%;2016年小于16排的CT机检测合格率51.85%,16排CT机检测合格率70.60%,64排及以上CT机检测合格率81.80%,2017年小于16排的CT机检测合格率86.60%,16排CT机检测合格率85.70%,64排及以上CT机检测合格率100.00%;CT机质量控制检测的单项指标合格率情况,2016年CT值线性合格率为76.36%,其余均在90.0%以上,2017年的单项指标合格率均在90.0%以上。CT机机房周围辐射水平检测结果,2016年机房检测合格率98.04%,2017年机房检测合格率97.30%。结论洛阳市2016年CT机质量控制检测合格率较低,虽然2017年有了很大的提高,但仍需加强监管,重点是一级及以下医院。Objective Understand testing index of CT machine quality control and protection status of CT machine room in Luoyang city.Methods By random sampling method,55 CT machines in 45 hospitals in Luoyang in 2016,37 CT machines in 32 hospitals in Luoyang in 2017 were tested for quality control,radiation level around the machine room was detected,and the test results were analyzed and evaluated.Results The test results of quality control showed that the qualified rate in 2016 was 63.60%and that in 2017 was 89.20%,with statistically significant differences(P<0.05).In 2016,the qualified rate of primary,secondary and tertiary hospitals was between 60.00%and 65.52%;in 2017,the qualified rate of primary hospitals was 78.90%;and the qualified rate of both secondary and tertiary hospitals was 100.00%.In 2016,the qualified rate of detection by a 16-row less CT machine was 51.85%,70.60%by 16-row CT machine,and 81.80%by a 64-row CT machine or above.In 2017,the qualified rate of detection was 86.60%,85.70%and 100.00%respectively.The qualification rate of the single index of the quality control test of the CT machine was 76.36%in 2016,while the rest were above 90.0%.The qualification rate of the single index in 2017 was all above 90.0%.According to the radiation level test results around the CT machine room,the qualified rate in 2016 was 98.04%,and the qualified rate in 2017 was 97.30%.Conclusion In 2016,the qualified rate of CT machine quality control in luoyang was relatively low.Although it was greatly improved in 2017,the supervision still needs to strengthen,with the emphasis on the supervision of primary and lower level hospitals.

关 键 词：X射线计算机断层摄影装置 质量控制 放射防护 

分 类 号：R812[医药卫生—放射医学]