108台医用CT机影像质量控制检测结果分析

Result Analysis on Image Quality Control Test of 108 sets of Medical CT

为了解内蒙古地区各级医疗单位的CT机使用状况,本文采用X射线线性衰减系数与人体组织相近的物质制成均质圆柱形模体和辐射剂量仪对医用CT机进行影像质量控制检测。通过对108台医用CT机质量控制检测结果分析得知,8项检测指标合格率较高,均在80%以上。所检测的内蒙古地区的108台CT机性能良好。

To know the usage state of CT in medical institutions in Inner Mongolia, we carried out quality control test on medical CT by using radiation dose meter and cylindroid mould, which is made of materials that have similar X-ray linear attenuation coefficient with body tissues. The test results of 108 sets of medial CT showed that 8 kinds of testing index had higher passing rate （〉80%）. The 108 sets of CT have satisfied performance.