Spatial distribution of acoustic and elastic properties of human femoral cortical bone

The purpose of this study is to quantify the spatial distribution of acoustic velocities and elastic properties (elastic constants) on Human femoral cortical bone. Four cross sections (average thickness of 2.09±0.27 mm) have been cut transversally between 40% and 70% of the total length and between...

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Bibliographic Details
Published in:Journal of biomechanics 2004-04, Vol.37 (4), p.503-510
Main Authors: Bensamoun, Sabine, Ho Ba Tho, Marie-Christine, Luu, Son, Gherbezza, Jean-Marc, de Belleval, Jean-François
Format: Article
Language:English
Subjects:
Acoustic properties
Acoustics
Aged
Biomechanical Phenomena
Biomechanics
Bone Density
Cadaver
Calibration
Cortical bone
Elasticity
Engineering Sciences
Feasibility Studies
Femur - diagnostic imaging
Femur - physiology
Human femur
Humans
Immersion
Male
Mechanical properties
Mechanics
Methods
Periosteum - physiology
Reproducibility of Results
Transducers
Ultrasonography
Ultrasound
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Summary:The purpose of this study is to quantify the spatial distribution of acoustic velocities and elastic properties (elastic constants) on Human femoral cortical bone. Four cross sections (average thickness of 2.09±0.27 mm) have been cut transversally between 40% and 70% of the total length and between them parallelepiped samples in each quadrant have been cut. Ultrasonic technique in transmission with immersion focused transducers at 5 MHz and contact transducers 2.25 MHz were used on the cross sections and parallelepiped samples, respectively. The first technique allows relative spatial distribution of velocities to be obtained, meanwhile the second technique allows the direct assessment of elastic constants. For both techniques, bulk velocities were found to be lower at the posterior side with an increase along the length (from 40% to 70% total length) ( p
ISSN:0021-9290
1873-2380
DOI:10.1016/j.jbiomech.2003.09.013