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positron emission tomography
(redirected from Pet scans)

    Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.01 sec.
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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He said currently, PET scans were most commonly used to detect cancer, heart problems such as coronary artery disease and damage to the heart following a heart attack, brain disorders that include brain tumours, memory disorders, seizures and other central nervous system disorders.
Bahrain to get nuclear lifesaving technology by TradeArabia (Manama, Bahrain)
After a series of CAT scans, PET scans, brain scans and bone scans I was told a few months later that the cancer had spread to an area behind my stomach wall and I had two tumors on my spine.
Recovering from stage 4 melanoma in the spine by Donat, Bill / Gerson Healing Newsletter
A method of medical imaging known as PET scans may allow doctors to develop a non-invasive test for Alzheimer's by spotting abnormal brain "plaques" associated with the disease, Finnish researchers report in a new study.
Study points to new test for Alzheimer's by AFP / AFP Global Edition
 
 
 
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