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positron emission tomography |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.11 sec. |
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positron emission tomography: see PET scan PET scan (pĕt) or positron emission tomography ..... Click the link for more information. . 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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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at hearings to consider making the positron emission tomography scanner he helped invent more accessible under federal Medicare coverage, and his UCLA peer said the recent award adds weight. |
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