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positron emission tomography
(redirected from Positron-emission tomography)

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positron emission tomography
n. Abbr. PET
Tomography in which a computer-generated image of a biological activity within the body 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
positron emission tomography
Tomography in which a computer-generated image of metabolic or physiologic activity within the body is produced through the detection of gamma rays that are emitted when introduced radionuclides decay and release positrons. The images are used in the evaluation of coronary artery disease, epilepsy, and other medical disorders.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.positron emission tomography - using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain)
PET
tomography, imaging - (medicine) obtaining pictures of the interior of the body
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