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. 1988 Feb;166(2):523-7.
doi: 10.1148/radiology.166.2.3336729.

Precision error in dual-photon absorptiometry related to source age

P D Ross  1 , R D Wasnich, J M Vogel
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Precision error in dual-photon absorptiometry related to source age

P D Ross et al. Radiology. 1988 Feb.

Abstract

An average, variable precision error of up to 6% related to source age was observed for dual-photon absorptiometry of the spine in a longitudinal study of bone mineral content involving 393 women. Application of a software correction for source decay compensated for only a portion of this error. The authors conclude that measurement of bone-loss rates using serial dual-photon bone mineral measurements must be interpreted with caution.

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