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positron emission tomography

noun

the process of producing a PET scan.

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Nearby words

positive-negative pressure breathing, positively, positivism, positivity, positron, positron emission tomography, positronium, posole, posologic, posology, poss
Compare PET scanner.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for positron emission tomography

positron emission tomography

noun

a technique for assessing brain activity and function by recording the emission of positrons from radioactively labelled substances, such as glucose or dopamine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for positron emission tomography

positron emission tomography

n.

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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for positron emission tomography

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.