Precision bone and muscle loss measurements by advanced, multiple projection DEXA (AMPDXA) techniques for spaceflight applications

Harry K. Charles, Thomas J. Beck, Howard S. Feldmesser, Thomas C. Magee, Thomas S. Spisz, Vincent L. Pisacane

Research output: Contribution to journalArticle


An 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.

Original languageEnglish (US)
Pages (from-to)447-450
Number of pages4
JournalActa Astronautica
Issue number3-10
Publication statusPublished - Aug 11 2001


ASJC Scopus subject areas

  • Aerospace Engineering

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