【摘要】 目的了解并评价南昌市医用X射线诊断设备的质量状况和机房防护情况。方法依据国家相关标准,对X射线机进行质量控制检测,并对X射线机房进行现场放射防护监测。结果本次检测的50台X射线机中,33台检测合格,合格率66.0%;国产机和进口机的合格率分别为59.4%和84.6%;市级、县区、乡镇、民营、职工医院的X射线机检测合格率分别为77.8%、85.7%、0.0%、64.3%、73.3%;检测不合格项主要集中在光野与照射野四边的偏离、光野与照射野中心的偏离两项;50个机房324个监测点中仅发现1家乡镇卫生院的机房门辐射剂量水平超标。结论在用的X射线诊断设备运行上存在一定的问题,应加强管理。更多还原

【Abstract】 Objective To investigate and estimate the status of the quality control and radiation protection for medical diagnostic X-ray machines in Nanchang. Methods Quality control inspecting and on-spot radiation protection monitoring were conducted by relative national standard methods. Results The total qualified rate of 50 X-ray machines was 66. 0%. The qualified rate of domestic and imported machines was 59. 4% and 84. 6%. And the qualified rate of city-,county-,township-,private-and the staff hospitals were 77. 8%,85. 7%,0. 0%,64. 3% and 73. 3% respectively. There were eight main quality control indicators included in this study in which the edges deviation and centres deviation of lighting filed to radiation filed had serious problem. The radiation level of one machine room door point from a township-level hospital in total 324 points exceeded the national standards limit. Conclusion We should strengthen the management of X-ray machines to solve the problem about quality control.更多还原