Studies and Modeling Elastic Properties of Porous Bones by Ultrasound Technique
The present work studies the non-destructive characterization of bovine trabecular bone samples by the ultrasonic pulse echo method in immersion mode. The acoustic properties (density, longitudinal and transversal velocities) were determined according to its degree of porosity. The theoretical model of Schoch was used for the ultrasonic wave propagation study. The theoretical results were compared with experimental data. The predicted values of the velocities and the density were of the same order of magnitude as experimental measurements. The study confirms the reduction in the longitudinal wave velocity with increasing porosity. The determination of these velocities can lead to predict the bone healthy or bone pathological and can even discover its elastic parameters.
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