QDR 4500A dual-energy X-ray absorptiometer underestimates fat mass in comparison with criterion methods in adults

Dual-energy X-ray absorptiometry (DXA) has become one of the most frequently used methods for estimating human body composition. Although the DXA technique has been validated for the measurement of fat-free mass and fat mass, differences in calibration between instruments produced by different manufacturers, as well as between different models produced by the same manufacturer, have been reported.The objective was to compare the calibration of...