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Clinical reproducibility of dual energy X-ray absorptiometry by Pamela Williams-Russo; John H. Healey; Ted P. Szatrowski; Robert Schneider; Stephen Paget; Kathy Ales; Patricia Schwartzberg is a Medicine article available to read on EtoBox.

What is Clinical reproducibility of dual energy X-ray absorptiometry about?

## Abstract Dual energy x‐ray absorptiometry is a technique advocated for the measurement of bone mass throughout the skeleton, and recently it has been used to measure changes in periprosthetic bone mass after joint replacement. The accuracy and precision of the method in clinical patient populations have not been firmly established. This study sought to establish the short‐term reproductibility of measurements made with dual energy x‐ray absorptiometry of multiple sites in a large sample of elderly patients with rheumatic disease. Reproductibility was assessed in the lumbar spine and in three femoral sites in 69 patients participating in a longitudinal clinical trial. In each patient, absorptiometry was performed twice in the same day at as many as five time points over a 2‐year period. The mean (±SD) baseline bone density was 0.783 ± 0.128 g/cm^2^ for the femoral neck and 1.015 ± 0.218 g/cm^2^ for the lumbar spine. The correlations between the duplicate baseline measurements of the spine were excellent (r = 0.9936, p < 0.001) and were stable over the 2‐year period; the mean difference between the duplicate baseline measurements was 1.82 ± 1.54% and the mean coefficient of variat

Who reads Clinical reproducibility of dual energy X-ray absorptiometry?

Author

Pamela Williams-Russo; John H. Healey; Ted P. Szatrowski; Robert Schneider; Stephen Paget; Kathy Ales; Patricia Schwartzberg

Publisher

Elsevier Science; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley (ISSN 0736-0266)

Published

1995

Language

EN

Field

Medicine (Health Sciences)