Osteoporosis (Diagnostics)

Dual-Energy X-Ray Absorptiometry Short Changes Women

Published in Women's Health Weekly, August 30th, 1999

Both dual-energy X-ray absorptiometry (DXA) and a nuclear method accurately estimate skeletal muscle mass, but DXA underestimates fat-free mass in women.

DXA, a method of body composition analysis, divides the body into fat, lean, and bone components with minimal radiation. Additionally, the technique is quick (5-6 minutes/scan), and it can quantify bone mineral density and bone mineral content.

While these characteristics make DXA a convenient tool, its accuracy in older patients is not clear. To clarify this grey area, Ross D. Hansen, of the University of Sydney, Australia, and colleagues compared the accuracy of DXA to that of a nuclear method...

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Source: Women's Health Weekly (1999-08-30)

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