positron emission tomography

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Related to Positron Emission Topography: single photon emission computed tomography

positron emission tomography

n. Abbr. PET
Tomography in which a computer-generated image of local metabolic and physiological functions in tissues is produced through the detection of gamma rays that are emitted when introduced radionuclides decay and release positrons.

positron emission tomography

n
(Medicine) a technique for assessing brain activity and function by recording the emission of positrons from radioactively labelled substances, such as glucose or dopamine

pos′itron emis`sion tomog`raphy


n.
the process of producing a PET scan. Compare PET scanner.

Positron Emission Tomography

(PET scan) A diagnostic method of examining tissues within the brain using a radioactive isotope injected into the bloodstream
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.positron emission tomography - using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain)
tomography, imaging - (medicine) obtaining pictures of the interior of the body
Translations
pozitronová emisní tomografie
References in periodicals archive ?
The National Institutes of Health Clinical Center began imaging patients last week on a first-of-its-kind, whole-body simultaneous positron emission topography (PET) and magnetic resonance imaging (MRI) device.
They will also examine various biological markers of the disease, using magnetic resonance imaging to measure the degree of shrinkage in the brain and positron emission topography to assess the extent of amyloid buildup in the brain.

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