Single-photon emission computed tomography
（重定向自Radionuclide computed tomography）
![](/Images/godic/202502/05/SPECT_Slice_of_Brain_using_Tc-99m_Ceretec0150.jpg")
![Animation of a SPECT scanning procedure.](/Images/godic/202502/05/-Animation_of_a_SPECT_implementation_using_a_six-axis_arm_robot_-_2191-219X-1-32-S1.ogv0151.jpg")
![A Siemens brand SPECT scanner, consisting of two gamma cameras.](/Images/godic/202502/05/TEMP-Siemens0151.jpg")
![SPECT machine performing a total body bone scan. The patient lies on a table that slides through the machine, while a pair of gamma cameras rotate around her.](/Images/godic/202502/05/SPECT_CT0151.JPG")
Single-photon emission computed tomography (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera. However, it is able to provide true 3D information. This information is typically presented as cross-sectional slices through the patient, but can be freely reformatted or manipulated as required.