某单光子发射计算机断层成像（spect）质量控制检测与评价.doc

某单光子发射计算机断层成像（SPECT）质量控制检测与评价

原创医学学士论文

【摘要】目的:对某单光子发射计算机断层成像系统（SPECT）的性能指标进行检测，对其性能做出评价，判断其是否符合国家标准，同时对临床工作做出参考，保证诊断的准确性和医务工作者的安全。方法：以GB/T 18988.2-2003《放射性核素成像设备性能和试验规则 第2部分：单光子发射计算机断层装置》、GB/T 18989.3-2003《放射性核素成像设备和试验规则：伽玛照相机》和NEMA NU 1-2007《美国电气制造业协会行业标准》为标准，用RM-905a，HCL-12011活度计和RGRMS-2012型SPECT性能模体对某单光子发射计算机断层成像（SPECT）的固有计数率、固有均匀性、固有能量分辨力、固有空间分辨力、固有空间微分线性、断层空间分辨力、系统平面灵敏度、系统空间分辨力和全身空间分辨力等指标进行检测。通过SPECT质量控制检测系统进行数据处理，判断其是否符合国家标准。结论：该单光子发射计算机断层成像系统（SPECT）的性能符合国家标准，性能良好。但考虑到元器件在日常工作中的磨损、老化情况，对SPECT定期进行状态检测，仍然很有必要。
【关键词】单光子发射断层扫描系统；质量控制；核医学

A quality control testing and eva luation of a single photon emission computed tomograph（SPECT）
[Abstract]Objective:Testing the performance of a Single-Photon Emission-Computed Tomography（SPECT）to eva luate the perform and judge whether it conforms to the national standard.At the same time,provide reference to clinical,and guarantee the accuracy of the diagnosis and the safety of medical staffs.Methods:According to GB/T 18988.2-2003 Radionuclide imaging device—Characteristics and test conditions—Part 2:Single photon emission computed tomograph, GB/T 18989.3-2003 Radionuclide imaging device—Characteristics and test conditions—Part 3:Gamma camera based-wholebody imaging systems and NEMA.Standards publication NU 1-2007:performance measure  of gamma cameras,we have tested the parameters of a single photon emission computed tomograph（SPECT）,such as the inherent count rate,the intrinsic uniformity,the intrinsic energy resolution,the Inherent spatial resolution,the intrinsic spatial differential linearity,the sectional spatial resolution,the system planar sensitivity,the system sptial resolution and the general sptial resolution,with the RM-905a，HCL-12011 Radioactivity meter and the RGRMS-2012 SPECT performance phantom.Then process the data by the SPECT quality control testing system and judge whether it conforms to the national standard. Results: The SPECT’s performance matches the national standard and in good conditions. But considering the components wear,aging in daily work,it’s still necessary to do the SPECT regular condition testing.
[Keywords] single photon emission computed tomograph;quality control;nuclear medicine