Whole-body phantoms with anthropomorphic-shaped skeletons for evaluation of dual-energy X-ray absorptiometry measurements
We have developed a set of four whole-body phantoms with anthropometric-shaped skeletons constructed of CaHPO 4-doped expoxy resin, to simulate average body sizes of children at ages 4, 10, 15 and 18. Each phantom was measured on a Hologic QDR-2000 instrument with and without a set of polyethylene o...
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Published in | Applied radiation and isotopes Vol. 49; no. 5; pp. 503 - 505 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
England
Elsevier Ltd
01.05.1998
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Subjects | |
Online Access | Get full text |
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Summary: | We have developed a set of four whole-body phantoms with anthropometric-shaped skeletons constructed of CaHPO
4-doped expoxy resin, to simulate average body sizes of children at ages 4, 10, 15 and 18. Each phantom was measured on a Hologic QDR-2000 instrument with and without a set of polyethylene overlays to simulate excess body fat, and with and without a 0.6% NaCl/water mixture to simulate differences in lean tissue composition. Precision of total body BMC, based on 4 scans over 2 wk, were 0.5%–1.8%, and were correlated (
r
2 = 0.999,
p < 0.001) with the chemical Ca content of the simulated skeleton. The addition of overlays to the phantoms to simulate increased body size and/or body fat resulted in small but significant increases in the measured values for BMC and bone area, but not that of BMD. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 0969-8043 1872-9800 |
DOI: | 10.1016/S0969-8043(97)00182-6 |