Title :
Simultaneous determination of acoustic velocity and density of a cortical bone slab: ultrasonic model-based approach - correspondence
Author :
Longo, R. ; Grimal, Quentin ; Laugier, Pascal ; Vanlanduit, Steve ; Guillaume, Patrick
Author_Institution :
Dept. of Mech. Eng., Vrije Univ. Brussel, Brussels, Belgium
fDate :
2/1/2010 12:00:00 AM
Abstract :
An ultrasonic setup coupled to a 1-D mathematical model of wave propagation is used to determine the material properties of elastic solids. A maximum likelihood fit of the acoustic response with the model response in the frequency domain enables the simultaneous determination of acoustic velocity, mass density, damping, and sample thickness. The method, previously tested with homogeneous materials, has been applied to compact bone despite the fact that it is a highly attenuating material.
Keywords :
bioacoustics; biomechanics; bone; damping; elasticity; maximum likelihood estimation; ultrasonic propagation; ultrasonic velocity; acoustic response; acoustic velocity; cortical bone slab; damping; elastic solids; frequency domain; highly attenuating material; homogeneous materials; mass density; material properties; maximum likelihood fit; model response; sample thickness; ultrasonic model; wave propagation; Acoustic propagation; Acoustic testing; Bones; Damping; Frequency domain analysis; Material properties; Materials testing; Mathematical model; Slabs; Solids; Algorithms; Animals; Bone Density; Bone and Bones; Cattle; Models, Theoretical; Signal Processing, Computer-Assisted; Ultrasonography;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2010.1430