[ pet-skan-er ]
/ ˈpɛt ˌskæn ər /
noun Computers, Medicine/Medical.
a tomographic imaging device that yields visual information (a PET scan) 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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Origin of PET scanner
First recorded in 1975–80
Words nearby PET scanner
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Medical definitions for PET scanner
A device that produces cross-sectional x-rays of metabolic processes by means of positron emission tomography.
Other words from PET scannerPET scanning n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.