SPECT stands for

SPECT stands for

• A. Spectral Photon Emission Computed Tomography
• B. Simple Photon Emission Computed Tomography
• C. Single Photon Emission Computed Tomography
• D. Solid Phase Emission Computed Tomography

Answer: (C)

SPECT imaging uses gamma photons emitted by a radiotracer and reconstructs those signals into a 3D image of the body's functional processes. The phrase “Single Photon” indicates that individual gamma photons are detected; “Emission” shows that the photons originate from inside the body (not from an external source); and “Computed Tomography” means the data from many angles are mathematically reconstructed to form a three‑dimensional view. The other proposed phrases aren’t standard terms used in nuclear medicine, so they don’t describe the modality correctly. Therefore, the correct expansion is Single Photon Emission Computed Tomography.

SPECT imaging uses gamma photons emitted by a radiotracer and reconstructs those signals into a 3D image of the body's functional processes. The phrase “Single Photon” indicates that individual gamma photons are detected; “Emission” shows that the photons originate from inside the body (not from an external source); and “Computed Tomography” means the data from many angles are mathematically reconstructed to form a three‑dimensional view. The other proposed phrases aren’t standard terms used in nuclear medicine, so they don’t describe the modality correctly. Therefore, the correct expansion is Single Photon Emission Computed Tomography.