SPECT设备固有性能测试及结果分析  

SPECT intrinsic performance test and analysis

作　　者：刘辉[1] 安晶刚[1] 宋颖[1] 

机构地区：[1]中国疾病预防控制中心辐射防护与核安全医学所放射诊疗设备质量控制实验室辐射防护与核应急中国疾病预防控制中心重点实验室,北京100088

出　　处：《中国医学装备》2012年第12期17-19,共3页China Medical Equipment

摘　　要：目的:对SPECT设备进行性能测试,探讨其固有性能测试结果和意义。方法:根据NEMA标准,利用核医学性能检测模体,检测SPECT设备的固有均匀性、固有空间分辨力、固有线性和计数率特性等性能指标。结果:对40余台SPECT设备进行了检测,且均为初次检测,其中固有空间分辨力和计数率特性均合格,固有均匀性和固有线性的不合格率分别为19%和24%。结论:必须加强SPECT的质量控制效果,强调SPECT设备性能测试重要性,满足临床采集的需要。Objective：To discuss results and significance of SPECT planar intrinsic performances in the test.Methods：According to NEMA standard,with phantom of nuclear medicine,performance testing was done as to intrinsic integral uniformity,intrinsic spatial resolution,intrinsic linearity,intrinsic count rate performance.Results：For firstly testing more than 40 SPECT planar,intrinsic integral and intrinsic spatial resolution were up to standard,but the unqualified rates of intrinsic integral and intrinsic linearity were 19% and 24%.Conclusion：It is necessary to enhance the effect of in quality control（QC） of SPECT planar and the fundamentality of the performance test,so that the devices can meet the demands for clinical practice.

关 键 词：单光子 体层摄影术 NEMA标准 均匀性 线性 

分 类 号：TH772.9[机械工程—仪器科学与技术]