Concept information
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Diagnostic Techniques and Procedures
Diagnostic Imaging
Radionuclide Imaging
Tomography, Emission-Computed
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Diagnostic Techniques and Procedures
Diagnostic Techniques, Radioisotope
Radionuclide Imaging
Tomography, Emission-Computed
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Computing Methodologies
Image Processing, Computer-Assisted
Image Enhancement
Tomography, Emission-Computed
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Diagnostic Techniques and Procedures
Diagnostic Imaging
Tomography
Tomography, Emission-Computed
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Diagnostic Techniques and Procedures
Diagnostic Imaging
Image Interpretation, Computer-Assisted
Tomography, Emission-Computed
Término preferido
Tomography, Emission-Computed, Single-Photon
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Tipo
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mesh:Descriptor
Definición
- 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.
Concepto genérico
Conceptos específicos
Etiquetas alternativas
- CAT Scan, Single-Photon Emission
- CT Scan, Single-Photon Emission
- Radionuclide Tomography, Single-Photon Emission-Computed
- Single-Photon Emission Computer-Assisted Tomography
- Single-Photon Emission Computerized Tomography
- Single-Photon Emission CT Scan
- Single-Photon Emission-Computed Tomography
- SPECT
- Tomography, Single-Photon, Emission-Computed
En otras lenguas
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francés
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Gamma-tomographie
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SPECT (Single-Photon Emission-Computed Tomography)
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TEMP
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Tomographie à émission monophotonique
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Tomographie d'émission monophotonique
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Tomoscintigraphie à émission de simple photon
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Tomoscintigraphie à émission monophotonique
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Tomoscintigraphie d'émission monophotonique
URI
http://data.loterre.fr/ark:/67375/JVR-LZQFGC14-9
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