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PET scanner

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noun
  1. a tomographic imaging device that yields visual information about the ongoing activity of the brain: positron-emitting isotopes, incorporated into biologically important compounds, are injected intravenously or administered by inhalation, and the resultant gamma radiation is sensed by detectors and converted into computer-generated images of blood flow, oxygen utilization, glucose uptake, etc.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

pet scanner in Medicine

PET scanner

n.
  1. A device that produces cross-sectional x-rays of metabolic processes by means of positron emission tomography.
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Related formsPET scanning n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.