SPECT
noun [ U ] medical specialized uk/ˈspekt/ us/ˈspekt/
（用伽玛射线为器官造影观察其工作状态的）单光子发射计算机断层扫描（single photon emission computed tomography的缩写）
abbreviation for single photon emission computed tomography: a method of using gamma rays (= a type of radiation) to produce images of organs in the body in which you can see how they work
A SPECT scan can show how blood flows in the heart. 单光子发射扫描可显示血液如何流经心脏。