医用CT机剂量测量比对分析  

Comparison and Analysis of Dose Measurement of Medical CT

作　　者：夏勋荣 邢立腾 马百乐 XIA Xunrong;XING Liteng;MA Baile(Jiangsu Institute of Metrology,Nanjing Jiangsu 210023,China)

机构地区：[1]江苏省计量科学研究院,江苏南京210023

出　　处：《中国医疗设备》2020年第11期31-33,共3页China Medical Devices

基　　金：国家重点研发计划-数字诊疗装备研发专项(2017YFC0113400)。

摘　　要：目的通过比对,验证省内各计量技术机构的实验室对CT机的检测能力。方法参加比对的13家实验室使用各自的计量标准器对同一台样品进行测量,给出测量结果和不确定度评定报告。结果比对结果的En值最大为0.8,各实验室的测量结果和不确定度评定都在合理预期范围之内。结论各参比实验室的检测能力符合要求,省内CT机剂量量值是准确、可靠和一致的。Objective To verify the testing capabilities of CT in 13 participating metrology institution laboratories through dose quantity measurement comparison in Jiangsu Province.Methods The 13 laboratories participating in the comparison used their own measurement standards to measure the same sample,and gave the measurement results and uncertainty evaluation reports.Results The maximum En value of the comparison results was 0.8,and the measurement results and uncertainty evaluation of each laboratory were within the reasonable expected range.Conclusion The testing capabilities of all 13 participating laboratories meet their standard and CT dose quantity in Jiangsu Province is accurate,reliable and uniform.

关 键 词：CT机 剂量 比对 En值 

分 类 号：R814.2[医药卫生—影像医学与核医学]