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Title: Fat to muscle ratio measurements with dual energy x-ray absorbtiometry

Accurate measurement of the fat-to-muscle ratio in animal model is important for obesity research. In addition, an efficient way to measure the fat to muscle ratio in animal model using dual-energy absorptiometry is presented in this paper. A radioactive source exciting x-ray fluorescence from a target material is used to provide the two x-ray energies needed. The x-rays, after transmitting through the sample, are measured with an energy-sensitive Ge detector. Phantoms and specimens were measured. The results showed that the method was sensitive to the fat to muscle ratios with good linearity. A standard deviation of a few percent in the fat to muscle ratio could be observed with the x-ray dose of 0.001 mGy.
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [7]
  1. Shenzhen College of International Education; GuangDong (China)
  2. Univ. at Buffalo, Buffalo, NY (United States)
  3. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  4. Columbia Univ., New York, NY (United States)
  5. Dartmouth College, Hanover, NH (United States)
  6. Stony Brook Univ., Stony Brook, NY (United States)
  7. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 0168-9002; R&D Project: LS001
Grant/Contract Number:
SC00112704; AC02-98CH10886; 05–057
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 788; Journal Issue: C; Journal ID: ISSN 0168-9002
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
36 MATERIALS SCIENCE; dual energy x-ray; absorptiometry; obesity research; fat-to-muscle ratio
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1247382