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Precision bone and muscle loss measurements by advanced, multiple projection DEXA (AMPDXA) techniques for spaceflight applicationsAn advanced, multiple projection, dual energy x-ray absorptiometry (AMPDXA) scanner system is under development. The AMPDXA is designed to make precision bone and muscle loss measurements necessary to determine the deleterious effects of microgravity on astronauts as well as develop countermeasures to stem their bone and muscle loss. To date, a full size test system has been developed to verify principles and the results of computer simulations. Results indicate that accurate predictions of bone mechanical properties can be determined from as few as three projections, while more projections are needed for a complete, three-dimensional reconstruction. c 2001. Elsevier Science Ltd. All rights reserved.
Document ID
20040088696
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Charles, H. K. Jr
(The Johns Hopkins Unversity Applied Physics Laboratory 11100 Johns Hopkins Road, Laurel, Maryland 20723-6099, United States)
Beck, T. J.
Feldmesser, H. S.
Magee, T. C.
Spisz, T. S.
Pisacane, V. L.
Date Acquired
August 21, 2013
Publication Date
August 1, 2001
Publication Information
Publication: Acta astronautica
Volume: 49
Issue: 3-10
ISSN: 0094-5765
Subject Category
Aerospace Medicine
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Life Sciences Technologies
Non-NASA Center

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