Results 221 to 230 of about 621,423 (276)

Value of Single Photon Absorptiometry in Osteoporosis Screening

Clinical Nuclear Medicine, 1988
Radial bone mineral content and bone mineral density were measured in 1515 women referred for osteoporosis screening. A detailed questionnaire allowed the selection of 1069 normal white women for further analysis who had no historical evidence of bone disease or predisposing factors for bone disease. The nondominant radius was measured at two locations:
Gordon L. Bilbrey, Jeff Weix, Gordon D. Kaplan   +2 more
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Sensitivity of dual-photon absorptiometry in spinal osteoporosis

Calcified Tissue International, 1988
Lumbar spine bone mass and density were measured with Dual photon absorptiometry (DPA) in 60 patients with crush fractures and 60 age-matched normal women. Short-term reproducibility of bone mineral density (BMD) was 1.3% in normal women and 2.5% in osteoporotic women; long-term reproducibility in normal women was 2.2%.
Florence Trémollières, Jean Pierre Louvet, Goerges Morlock, Bernard Fournie, Jean Michel Pouilles, Claude Ribot   +5 more
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X-ray dual-photon absorptiometry: a new method for the measurement of bone density.

British Journal of Radiology, 1989
A recently introduced method (dual-photon X-ray absorptiometry, DEXA) capable of measuring skeletal density in man (at present in the spine and hips, but ultimately for the whole body) has been evaluated in terms of its ability to perform long-term ...
I. Cullum, P. Ell, J. Ryder
semanticscholar   +1 more source

Dual Photon Absorptiometry The Importance of Clinical Correlation

Clinical Nuclear Medicine, 1988
Dual photon absorptiometry is a reliable method of assessing bone mineral density. However, distortions of bony architecture, which may not be evident from the low-resolution images provided, can complicate the evaluation and lead to misleading findings. A case is presented which describes the importance of clinical and radiographic correlation.
L. K. Von Moll, Barry L. Shulkin
openaire   +3 more sources

Body Composition by Dual-Photon Absorptiometry and Dual-Energy X-Ray Absorptiometry [PDF]

, 1990
Dual-energy projection methods have been used over the past decade for non-invasive measurement of bone. Dual-photon absorptiometry (DPA) using a 153-Gd radionuclide source is used clinically in about 1000 centers to measure regional bone mineral density (BMD), particularly of the spine and proximal femur (Barden and Mazess, 1989).
J. A. Hanson, Howard S. Barden, Richard B. Mazess   +2 more
openaire   +2 more sources

Bone mineral content in the forearm measured by photon absorptiometry. Principles and reliability.

Scandinavian Journal of Clinical and Laboratory Investigation, 1975
A method for estimating total bone calcium is reported. The method is based on two-dimensional scanning photon absorptiometry on the distal part of the forearm.
C. Christiansen, P. Rödbro, H. Jensen
semanticscholar   +1 more source

The Use of Photon Absorptiometry in the Diagnosis of Renal Osteodystrophy

Radiology, 1973
By using a 125I collimated point source to measure bone mineral, 700 measurements were obtained from the cortical bone of the lower arm in 303 patients with renal failure representing every stage of the disease. Of these patients, 123 had received transplants.
Ronald Snider, Harry J. Griffiths, Robert E. Zimmerman, George L. Bailey   +3 more
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An evaluation of dual-energy X-ray absorptiometry and comparison with dual-photon absorptiometry

Osteoporosis International, 1992
Dual-photon absorptiometry (DPA) is a well-established procedure for measuring bone mineral density (BMD). Recently, dual-energy X-ray absorptiometry (DXA) has become available, which has the ability to measure BMD both regionally and in the total body (TB). We have evaluated the in vivo and in vitro precision of a DXA instrument and compared it with a
B. Lees, J. C. Stevenson
openaire   +3 more sources

Precision and accuracy of total body bone mass and body composition measurements in the rat using x-ray-based dual photon absorptiometry.

Canadian Journal of Physiology and Pharmacology, 1997
Lean body mass (LBM), total body bone mineral mass (BMC), total body bone areal density (BMD), and body fat mass (FM) were measured in rats by dual photon absorptiometry (DXA), using two different instruments.
S. Makan, H. S. Bayley, C. Webber
semanticscholar   +1 more source

Photon absorptiometry, bone densitometry and the challenge of osteoporosis

Physics in Medicine and Biology, 2006
During the lifetime of Physics in Medicine and Biology, osteoporosis has been recognized as the cause of a major health burden for societies, particularly within developed countries. The health detriment is associated with the consequences of bone fractures and the subsequent increases in morbidity and mortality.
openaire   +3 more sources