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目的对2014年我省274台CT机性能监测资料进行总结分析,了解新标准运用下我省CT机的使用情况,为卫生行政部门监督管理提供科学数据支持。方法采用CT性能检测模体、CT剂量仪及配套的长杆电离室,按照GB17589-2011《X射线计算机断层摄影装置质量保证检测规范》的要求对CT机进行影像质量保证检测。结果通过对274台CT机质量保证检测结果分析可知,210台进行状态检测,10项指标全部合格的有198台,合格率94.29%;64台进行验收检测,11项指标全部合格的有61台,合格率95.31%。结论广东省CT质量保证检测结果总体令人满意,其合格率高于其它省市,但仍需加大宣传,提高CT应用质量保证,确保广大患者的健康与安全。
Objective To summarize and analyze the data of 274 CT machine performance monitoring in 2014 in our province, understand the usage of CT machine in our province under the new standard and provide scientific data support for the supervision and administration of the health administrative department. Methods The CT performance testing module, CT dosimeter and long pole ionization chamber were used to detect the CT image quality according to the requirements of GB17589-2011 “X-ray computed tomography quality assurance testing specification”. Results Through the analysis of the results of 274 CT machine quality assurance tests, 210 units were tested for their condition and 198 of them were all qualified, with a pass rate of 94.29%; 64 units were tested for acceptance and 61 of them were all qualified , Pass rate of 95.31%. Conclusion The results of CT quality assurance test in Guangdong Province are generally satisfactory. The pass rate is higher than that of other provinces and cities. However, publicity is still needed to improve the quality assurance of CT application so as to ensure the health and safety of the vast majority of patients.