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... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Imaging > Radionuclide Imaging > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon
... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Techniques, Radioisotope > Radionuclide Imaging > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon
... > Information Science > Computing Methodologies > Image Processing, Computer-Assisted > Image Enhancement > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon
... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Imaging > Photography > Image Enhancement > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon
Investigative Techniques > Photography > Image Enhancement > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon
... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Imaging > Tomography > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon
... > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Imaging > Image Interpretation, Computer-Assisted > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon
Diagnosis > Diagnosis, Computer-Assisted > Image Interpretation, Computer-Assisted > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon
... > Information Science > Informatics > Medical Informatics > Medical Informatics Applications > Decision Making, Computer-Assisted > Diagnosis, Computer-Assisted > Image Interpretation, Computer-Assisted > Tomography, Emission-Computed > Tomography, Emission-Computed, Single-Photon

Preferred term

Tomography, Emission-Computed, Single-Photon  

Type

  • mesh:Descriptor

Definition

  • A method of computed tomography that uses radionuclides which emit a single photon of a given energy. The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer is then used to reconstruct the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the organ. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as size and volume of the organ. The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image.

Broader concept

Narrower concepts

Entry terms

  • CAT Scan, Single-Photon Emission
  • CT Scan, Single-Photon Emission
  • Radionuclide Tomography, Single-Photon Emission-Computed
  • Single-Photon Emission-Computed Tomography
  • Single-Photon Emission Computer-Assisted Tomography
  • Single-Photon Emission Computerized Tomography
  • Single-Photon Emission CT Scan
  • SPECT
  • Tomography, Single-Photon, Emission-Computed

Allowable Qualifier(s)

In other languages

  • Tomographie par émission monophotonique

    French

  • Gamma-tomographie
  • SPECT (Single-Photon Emission-Computed Tomography)
  • TEMP
  • Tomographie à émission monophotonique
  • Tomographie d'émission monophotonique
  • Tomoscintigraphie à émission de simple photon
  • Tomoscintigraphie à émission monophotonique
  • Tomoscintigraphie d'émission monophotonique

URI

http://data.loterre.fr/ark:/67375/JVR-LZQFGC14-9

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RDF/XML TURTLE JSON-LD Created 5/16/89, last modified 7/8/08