Correlations of group velocity, phase velocity, and dispersion with bone density in bovine trabecular bone.
The present study investigated the correlations of the group velocity, the phase velocity, and the velocity dispersion with the apparent bone density in bovine trabecular bone in vitro. The phase velocity exhibited the negative dispersion, consistent with the behavior in human trabecular bone. The group and the phase velocities were found to increase with increasing apparent bone density, respectively, exhibiting similar high correlations of r=0.94 and 0.96. The negative dispersion rate exhibited a decreasing dependence on the apparent bone density, with a significant correlation of r=-0.86.
Department of Physics, Kangwon National University, Chuncheon 200-701, Republic of Korea. acustica@kangwon.ac.kr
Kang Il
KI
Lee
D000162:Acoustics; D000818:Animals; D015519:Bone Density / Q000502:physiology; D002417:Cattle; D005269:Femur / Q000502:physiology*; D011673:Pulsatile Flow / Q000502:physiology; D013016:Sound