Graham L S, Fahey F H, Madsen M T, van Aswegen A, Yester M V
Med Phys. 1995 Apr;22(4):401-9. doi: 10.1118/1.597605.
A comprehensive performance testing program is an essential ingredient of high-quality single-photon emission computed tomography (SPECT). Many of the procedures previously published are complicated, time consuming, or require a special testing environment. This Task Group developed a protocol for evaluating SPECT imaging systems that was simple, practical, required minimal test equipment, and could be performed in a few hours using processing software available on all nuclear medicine computers. It was designed to test rotational stability of uniformity and sensitivity, tomographic spatial resolution, uniformity and contrast, and the accuracy of attenuation correction. It can be performed in less than three hours and requires only a Co-57 flood source, a line source, and a tomographic cylindrical phantom. The protocol was used 51 times on 42 different cameras (seven vendors) by four different individuals. The results were used to establish acceptable ranges for the measured parameters. The variation between vendors was relatively small and appeared to reflect slight differences in basic camera performance, collimation, and reconstruction software. Individuals can use the tabulated values to evaluate the performance of individual systems.
全面的性能测试程序是高质量单光子发射计算机断层扫描（SPECT）的重要组成部分。先前发表的许多程序都很复杂、耗时，或者需要特殊的测试环境。该任务组制定了一个评估SPECT成像系统的方案，该方案简单、实用，所需测试设备最少，并且可以使用所有核医学计算机上都有的处理软件在几个小时内完成。它旨在测试均匀性和灵敏度的旋转稳定性、断层空间分辨率、均匀性和对比度以及衰减校正的准确性。它可以在不到三个小时内完成，只需要一个Co-57泛源、一个线源和一个断层圆柱形体模。该方案由四个不同的人在42台不同的相机（七个供应商）上使用了51次。结果用于确定测量参数的可接受范围。供应商之间的差异相对较小，似乎反映了基本相机性能、准直和重建软件的细微差异。个人可以使用列表值来评估单个系统的性能。
