Medical Dictionary

positron–emission tomography

noun

Definition of POSITRON-EMISSION TOMOGRAPHY

:  tomography in which an in vivo, noninvasive, cross-sectional image of regional metabolism is obtained by a usually color-coded cathode-ray tube representation of the distribution of gamma radiation given off in the collision of electrons in cells with positrons emitted by radionuclides incorporated into metabolic substances—abbreviation PET
April 02, 2015
capricious Hear it
impulsive or unpredictable
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