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Ultrasonic characterization of cancellous bone: theoretical and experimental analysis

It is now commonly accepted that the spatial architecture as well as the multiphasic nature of a medium strongly influence the propagation of ultrasonic waves. Using a model-based approach, the propagation of acoustic waves in spongy bone tissues was analyzed within the framework of the Biot's theory. Both theoretical analysis and experimental tests demonstrated the existence of two different longitudinal modes in human and bovine bony tissues.