JCI标准在医疗影像设备质量控制中的应用

Application of JCI Standard in the Quality Control of Medical Imaging Equipment

目的分析JCI标准在医疗影像设备质量控制检测的应用价值。方法采用JCI认证标准对75台医用CT进行风险评估,制定预防性维修计划,检测辐射剂量、机械性能、影像质量参数指标,评估实施前后影像质量。结果 75台CT中,5台高风险设备,14台中风险设备,56台低风险设备,分别实施6个月、12个月、24个月的预防性维修计划;辐射剂量指数、机械性能、图像质量等各项合格率均超过85%以上,其中定位光精度、CT值、躁音、层厚偏差、高对比分辨力、低对比分辨力、床定位精度均大于90%;实施后摄影甲级片(56.13%)明显高于实施前。结论以结果为导向的JCI标准在医疗影像设备质量管理中更具前瞻性,有较强的预警作用。

Objective To analyze the application value of JCI standards in the quality control of medical imaging equipment. Methods Made risk assessment on 75 medical CTs with JCI certification standard and preventive maintenance plan, detected radiation dose and mechanical capacity, parameter index of image quality and evaluated image quality before and after assessment. Result In the assessed 75 CTs, 5 were high risk equipment, 14 were middle risk equipment and 56 were low risk equipment. Applied preventive maintenance plan on them for 6 months, 12 months,24 months respectively. Yield of radiation dose index, mechanical capacity and image quality were above 85%, and light positioning accuracy, CT value, noise, layer thickness deviation, high contrast resolution, low contrast resolution, bed positioning accuracy were above 90%. The percentage of Class A image（56.13%） after implementation was significantly higher than before. Conclusion Result-oriented JCI standards was more prospective in the quality management on medical imaging equipment.