Single-photon emission computed tomography | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-13

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Single-photon_emission_computed_tomography


00:01:14 1 Principles
00:05:27 2 Application
00:06:04 2.1 Myocardial perfusion imaging
00:07:49 2.2 Functional brain imaging
00:11:15 2.3 Applications in nuclear technology
00:12:20 3 Reconstruction
00:14:59 4 Typical SPECT acquisition protocols
00:15:10 5 SPECT/CT
00:16:04 6 Quality control



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SUMMARY
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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 (that is, scintigraphy). but 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.
The technique requires delivery of a gamma-emitting radioisotope (a radionuclide) into the patient, normally through injection into the bloodstream. On occasion, the radioisotope is a simple soluble dissolved ion, such as an  isotope of gallium(III). Most of the time, though, a marker radioisotope is attached to a specific ligand to create a radioligand, whose properties bind it to certain types of tissues. This marriage allows the combination of ligand and radiopharmaceutical to be carried and bound to a place of interest in the body, where the ligand concentration is seen by a gamma camera.