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DEXA |
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DEXA,
abbreviation for dual-energy x-ray absorptiometry. absorptiometry [ab-sorp″she-om´ĕ-tre] in radiology, the measurement of the degree to which the radiation emitted by a radioisotope is completely dissipated within a tissue. dual energy absorptiometry (DEXA) an imaging technique that uses two low-dose x-ray beams with different levels of energy to produce a detailed image of body components; used primarily to measure bone mineral density. dual photon absorptiometry measurement of bone mineral content in the axial skeleton, particularly the lumbar spine, by comparing transmission of the two separate photoelectric energy peaks emitted by gadolinium 153 through both soft and bone tissues.
DEXA, n.pr See dual-energy x-ray absorptiometry. 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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