Precision error in dual-photon absorptiometry related to source age |
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Authors: | Ross, PD Wasnich, RD Vogel, JM |
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Affiliation: | Kuakini Osteoporosis Study, Honolulu, HI 96817. |
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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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