Journal
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume 132, Issue 1, Pages EL54-EL60Publisher
ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.4730329
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- Centre National de la Recherche Scientifique (CNRS)
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Japan Society for the Promotion of Science
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Micro-Brillouin scattering (mu-BR) and a 200 MHz scanning acoustic microscope (SAM) with similar spatial resolutions were applied to evaluate tissue elastic properties in two directions in a trabecula. Acoustic impedance measured by SAM was in the range of 5-9 Mrayl. Wave velocities determined by mu-BR were in the range of (4.75-5.11) x 10(3) m/s. Both exhibited a similar trend of variation across the trabecula and were significantly correlated (R-2 = 0.63-0.67, p < 0.01). mu-BR is useful for the evaluation of tissue stiffness within a trabecula. Combined with SAM or nanoindentation, it can provide additional information to assess elastic anisotropy at the micro-scale. (C) 2012 Acoustical Society of America
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