RADIOISOTOPES
Online ISSN : 1884-4111
Print ISSN : 0033-8303
ISSN-L : 0033-8303
Accuracy of Dual Photon Absorptiometry for Assessment of Bone Mineral and Body Composition
Manabu AOKI, Akira IWAMURA, Eisuke GOTO, Yutaka MORI, Kenji KAWAKAMI, Shigeru SOSHI
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Keywords: dual photon absorptiometry, single photon absorptiometry, electrical impedance, bone mineral, body composition
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1991 Volume 40 Issue 8 Pages 313-318

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Abstract
Accuracy of bone mineral measurement by the dual photon absorptiometry (DPA) was studied in comparison to ashed bone mineral (ash) on the lumbar spine of 23 cada vars.
There was a high correlation (r=0.896) between the value of DPA and ash weight. Bone mineral content in the radius by the single photon absorptiometry (SPA) did not correlate to bone mineral density (BMD) by DPA in the patients with hemodialysis.
SPA may be less useful to assess BMD of the whole body.
Fat mass and lean mass measured by DPA were well correlated to the value obtained by the electrical impedance method. Precision in measurement of fat mass and lean mass was also confirmed by the electrical impedance method.
These results suggest that DPA has a high precision for measurements of the bone mineral and the body composition.
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© Japan Radioisotope Association
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