positron emission tomography

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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

(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

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
pozitronová emisní tomografie
References in periodicals archive ?
PET-Technology, a Rusnano project company, has unveiled plans to build in Siberia s Tomsk a positron-emission tomography (PET) center for early cancer diagnostics.
The primary tools of the trade are positron-emission tomography (PET) and single-photon-emission computed tomography (SPECT) scans, with which scientists can find and measure changes in dopamine and other neurochemicals in the brain.
This platform employs powerful mathematical algorithms and computer processors to render a 3-D representation of targeted patient anatomy, using diagnostic imaging data acquired preoperatively from computed tomography (CT), magnetic resonance imaging (MRI) or positron-emission tomography (PET) scans.