Results 241 to 250 of about 94,612 (306)
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Current Role for Bone Absorptiometry

Joint Bone Spine, 2017
Bone mineral density (BMD) measurement using dual-energy X-ray absorptiometry (DXA) is a key contributor to the management of bone fragility syndromes, most notably postmenopausal osteoporosis. Experimental studies of bone biomechanics have established that an accurate marker for mechanical strength is areal BMD (aBMD, g/cm2). Areal BMD contributes 70%
Karine Briot, Christian Roux
exaly   +3 more sources

Single X-Ray Absorptiometry: Performance Characteristics and Comparison With Single Photon Absorptiometry

Osteoporosis International, 1995
The aim of the present study was to evaluate a new device for measurement of forearm bone mass using the technique of single X-ray absorptiometry (SXA, DTX-100; Osteometer A/S, Rødovre, Denmark), and to compare the performance with the more traditional single photon absorptiometry (SPA, DT 100; Osteometer A/S, Rødovre, Denmark).
B J Riis
exaly   +3 more sources

On New Opportunities for Absorptiometry

Journal of Clinical Densitometry, 1998
Mechanical loads cause bone strains; and muscle forces, not body weight, cause the largest strains. The strains help to control the effects of bone modeling and remodeling on bone strength and "mass." When strains exceed a threshold range, modeling increases bone strength and "mass." When strains stay below a smaller threshold range, remodeling begins ...
J L, Ferretti, H, Schiessl, H M, Frost
openaire   +2 more sources

Precision of dual-photon absorptiometry

Calcified Tissue International, 1988
Precision of dual-photon absorptiometry (DPA) measurements was determined in a lumbar spine phantom and in humans. Approximately half of the measurements were made before and half after a 153gadolinium source change. The phantom was measured with different amounts of acrylic, which simulates human soft tissue, in order to evaluate the influence of body
C C, Shipp   +3 more
openaire   +2 more sources

Radiographic absorptiometry in the diagnosis of osteoporosis

The American Journal of Medicine, 1995
Radiographic absorptiometry (RA) is a technique for bone mass measurement from radiographs of peripheral sites, most commonly the hand or heel. The principle was first described in 1939, and RA became relatively widely used as a research technique in the 1960s, although interest in RA subsequently dwindled as precise nonradiographic densitometry ...
A J, Yates   +3 more
openaire   +2 more sources

Absorptiometrie

Der Radiologe, 2006
Die vorliegende Ubersicht gibt eine Einfuhrung zur Zweispektren-Rontgenabsorptiometrie oder DXA (dual X-ray absorptiometry), der erfolgreichsten und am weitesten verbreiteten Methode in der Osteoporosediagnostik. DXA-Untersuchungen dienen zur Messung der projektiven Knochendichte der Wirbelsaule, des Huftknochens, des gesamten Skeletts und zur ...
openaire   +1 more source

Reversion : a New Procedure in Absorptiometry

Nature, 1948
MANY metals form coloured complexes with dithizone, and the successful use of this reagent for estimating one of them in a mixture demands a careful selection of organic solvent, a rigorous control of pH and other variables such as duration of shaking, nature and amount of neutral salts present, the concentration of excess dithizone, and the ...
H, IRVING, G, ANDREW, E J, RISDON
openaire   +2 more sources

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