Principles of Single Photon Emission Computed Tomography and Positron Emission Tomography

  • Wai-Hoi Gary Wong
  • Jorge Uribe

Abstract

Radionuclide-tracer targeted imaging is based on the detection of gamma rays emitted by the radionuclides embedded in biologically specific compounds after the injection of the compounds into human or experimental animals. The most common imaging radionuclides used for imaging emit gamma rays, which are uncorrelated, and these gamma rays are detected individually or singularly for imaging; this is called single photon imaging. The basic imaging devices used for single photon imaging are gamma cameras or the rotational version, single photon emission computed tomography (SPECT) cameras. Another radionuclide-tracer imaging technique uses positron emitting radionuclides that emit two 511-KeV gamma rays simultaneously, and this pair of gamma rays is detected simultaneously or coincidentally for imaging purposes; this is known as coincidence imaging or positron imaging.

Keywords

Positron Emission Tomography Single Photon Emission Compute Tomography Standard Uptake Value Gamma Camera Positron Emission Tomography Camera 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Wai-Hoi Gary Wong
  • Jorge Uribe

There are no affiliations available

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