Results 151 to 160 of about 612,897 (224)

Triple-Photon Energy Absorptiometry in the Measurement of Bone Mineral

Acta Radiologica, 1988
The feasibility of determination of bone mineral content using a triple-photon absorptiometric technique is presented. Using three different photon energies it is possible to correct the measured ‘bone mineral’ value for fat and lean soft tissue.
R, Jonson, B, Roos, T, Hansson
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Single-Photon Absorptiometry

1988
Single-photon absorptiometry (SPA) was first described by Cameron and Sorenson (1963) in an effort to overcome the problems inherent in the use of film densitometry. The basic configuration for the single-photon systems commercially available today was introduced in 1972 (Mazess and Cameron, 1972).
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Body composition by photon absorptiometry.

Canadian journal of sport sciences = Journal canadien des sciences du sport, 1990
Whole-body dual photon measurements of body composition were made in 9 controls, 15 athletes and 5 patients with eating disorders. Measurements of lean body mass, mineral mass and fat mass were accurate. Lean body mass and fat mass were measured with reliabilities of about 0.8 kg while for total body bone mineral mass, the reliability was about 60 g ...
V, Galea, S, Ormerod, N, White, J D, MacDougall, C E, Webber   +4 more
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Single- and dual-photon absorptiometry in osteoporosis and osteomalacia

Seminars in Nuclear Medicine, 1987
Single- and dual-photon absorptiometric methods have been used in the past to identify populations at risk for bone loss, to define the osteoporotic syndrome in terms of bone mass, and to evaluate treatment regimens to prevent bone loss. Technical improvements have made these procedures available for the nontraumatic measurement of bone mineral in the ...
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Photon absorptiometry.

American journal of physiologic imaging, 1988
Recently, there has been a renewed interest in the detection and treatment of osteoporosis. This paper is a review of the merits and limitations of the various noninvasive modalities currently available for the measurement of bone mineral density with special emphasis placed upon the nuclear medicine techniques of single-photon and dual-photon ...
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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.
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Body Composition by Dual-Photon Absorptiometry and Dual-Energy X-Ray Absorptiometry

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).
R B, Mazess, H S, Barden, J A, Hanson
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[Applications and results of photon absorptiometry].

Minerva endocrinologica, 1992
Bone mineral content (CMO, mg/cm2) was measured at the distal radius by dual photon absorptiometry (DPA, I125, Am241) in 1.161 women (w), aged 20-87 years. Women were subdivided into different groups according to the presence and duration of menopause. For gross evaluation of spinal osteoporosis (OP), the results of spinal X-rays were graded as follows:
O, Di Munno, G, Occhipinti, A, Pontrandolfo   +2 more
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Monitoring fluoride therapy in osteoporosis by dual photon absorptiometry

Bone, 1987
Dual photon absorptiometry (DPA) was used to evaluate changes in bone mineral mass in 108 osteopenic patients. Ninety were treated with fluoride and 18 served as controls. All osteopenic patients and 9 of the controls took calcium and vitamin D supplements. In 16 women estrogens were combined with the fluoride therapy.
J A, Raymakers, C F, van Dijke, A, Hoekstra, S A, Duursma   +3 more
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Precision of dual photon absorptiometry measurements.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 1986
One of the important uses of bone absorptiometry is to examine the rate of bone mineral change in order to evaluate therapy and to identify individuals who need therapy. Generally, this involves comparing the difference between two scans obtained months to years apart.
A D, LeBlanc, H J, Evans, C, Marsh, V, Schneider, P C, Johnson, S G, Jhingran   +5 more
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