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 (əb-zôrp′tē-ŏm′ĭ-trē, -sôrp′-)
A method of chemical analysis in which a sample of a substance is exposed to electromagnetic radiation, and the amount of radiation absorbed is measured to determine the chemical composition or concentration of the substance.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
de Santana, from Universidade de Sao Paulo in Brazil, and colleagues evaluated 839 community-dwelling older individuals (≥65 years; 516 women) using a questionnaire, clinical data, laboratory exams, and body composition by dual-energy X-ray absorptiometry (DXA).
In Later stage of X-ray, expansion in the field of quantity of bone density was the recognition of single-photon absorptiometry (SPA) by Cameron and Sorenson in the year 1963.
Objective: To determine mean bone mineral density in patients with chronic low back pain presenting at Armed Forces Institute of Rehabilitation Medicine Rawalpindi based on dual energy x-ray absorptiometry studies.
In the study, Dual-energy X-ray absorptiometry (DXA) scans were used to evaluate the initial bone health of the participants as well as the training-induced effects, along with blood samples to determine plasma markers for bone turnover and bone formation.
The new center will offer screening mammography as well as Dual Energy X-ray Absorptiometry bone density examinations.<br />"Providing state-of-the-art 3D mammography at Norman Regional Moore is a great step forward for convenience as well as prevention," said John Chace, medical director of the Breast Care Center.<br />Services offered at the new Breast Care Center at Norman Regional Moore, 700 S.
Among direct methods, [3,4] four-compartment model, air displacement plethysmography, and dual-energy X-ray absorptiometry (DXA) are included while indirect methods cover anthropometric measurements, skinfold measurement, body adiposity index, and bioelectric impedance analysis (BIA) to assess body composition.
The effect was measured on Bone Mineral Density using Dual-energy X-ray absorptiometry (DXA).
For the study, researchers measured bone density using three-dimensional computed tomography (CT) called quantitative CT and dual-energy x-ray absorptiometry, also called DXA.
Patients and methods: In this study, we reanalyzed 323 dual energy X-ray absorptiometry (DXA) reports, by evaluating the scan images for proper patient positioning and scan analysis.
There are certain techniques for accurately assessing total body fat such as underwater weighing (UWW),7,8 dual energy X-ray absorptiometry (DEXA), and isotope dilution, but they are extremely expensive and are only possible in specialized research centers.9,10 Bioelectrical impedance is a low cost alternative which is a noninvasive, relatively inexpensive and is portable.11,12
Bone mineral density z-score was measured at lumbar spine with Dual Energy X-Ray Absorptiometry at L1-L4 lumbar vertebra.