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positron emission tomography
(redirected from PET scanner)

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positron emission tomography: see PET scan PET scan or positron emission tomography , a medical imaging technique that monitors metabolic, or biochemical, activity in the brain and other organs by tracking the movement and concentration of a radioactive tracer injected into the
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positron emission tomography (PET)

Imaging technique used in diagnosis and biomedical research. A chemical compound labeled with a radioactive isotope (see radioactivity) that emits positrons is injected into the body, and detectors measure their activity in the tissues as they combine with electrons and are annihilated. Computers analyze, integrate, and reconstruct the data to produce images of the organs scanned. PET is particularly useful for studying brain and heart functions.

positron emission tomography [′päz·ə‚trän i¦mish·ən tō′mäg·rə·fē]
(medicine)
A technique that uses measurements of the back-to-back emission of gamma rays from the annihilation of positrons emitted by radioactive tracers to map the distribution of these tracers in the human body. Abbreviated PET.
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Both the PET scanner and the RenalTransplant Centre are expected to be operational by April 2010.
Minister gets progress report on hi-tech scanner by South Wales Echo (Cardiff, Wales)
They were showed round University Hospital's renal unit and saw its PET scanner, the only one in the NHS outside London which is helping to save people's lives in Coventry.
Russians twin tour by Coventry Evening Telegraph (England)
The PET scanner uses nuclear medicine and patients are injected with a safe radioactive substance so the images can be seen clearly.
Sharp-eyed PET will help to save lives; pounds 5m scanner can detect ... by Evening Chronicle (Newcastle, England)
 
 
 
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