论文部分内容阅读
目的调查和分析茂名市医用诊断X射线机的性能状况。方法用瑞典生产的Solidose 300型诊断水平剂量仪检测并按标准[1]评价。结果 167台医用诊断X射线机总合格率为86.2%,其中国产机检测合格率为81.4%,不合格率为18.6%,进口机检测合格率为96.3%,不合格率为3.7%,两者不合格率比较具有显著性(P<0.05);检测不合格突出在输出量重复性和曝光时间偏离两项指标。按单位所在级别,市级、县(区)级和镇级检测不合格率分别为7%、4.3%和23.3%,三者不合格率比较有统计学意义(P<0.05)。结论全市医用诊断X射线机性能合格率偏低,尤其镇级医院突出。
Objective To investigate and analyze the performance of medical diagnostic X-ray machines in Maoming. Methods The Swedish version of Solidose 300 diagnostic level dosimeter was tested and evaluated according to the standard [1]. Results The total qualified rate of 167 medical diagnostic X-ray machines was 86.2%, of which the qualified rate of domestic machines was 81.4%, the unqualified rate was 18.6%, the imported machine tested 96.3% and the unqualified rate was 3.7% The unqualified rate was significant (P <0.05). The unqualified test showed that the output repeatability and exposure time deviated from the two indexes. According to the level of the unit, the unqualified rate of municipal, county (district) level and town level testing were 7%, 4.3% and 23.3%, respectively. The unqualified rate was statistically significant (P <0.05). Conclusion The passing rate of the medical diagnostic X-ray machine in the city is low, especially in the township hospitals.