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bone densitometry |
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bone densitometry,
any of several methods of determining bone mass by measuring radiation absorption by the skeleton. Common techniques include single-photon absorptiometry (SPA) of the forearm and heel, dual-photon absorptiometry (DPA) and dual-energy x-ray absorptiometry (DXA) of the spine and hip, quantitative computed tomography (QCT) of the spine and forearm, radiographic absorptiometry (RA) of the hand, and quantitative ultrasound (QU). bone densitometry (bōnˑ den·si·t n test that determines bone density according to the radiation absorption rate of the skeletal structure being tested.
bone densitometry The measurement of bone mass or density; the current methods—single-photon absorptiometry, dual-energy photon absorptiometry, dual-energy X-ray absorptiometry, are based on tissue absorption of photons derived from
either a radionuclide or an X-ray tube; the latter are more accurate with shorter scan time. See Osteoporosis. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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