The Acoustic and Structural Properties of the Human FemurSource: Journal of Biomechanical Engineering:;1998:;volume( 120 ):;issue: 001::page 71DOI: 10.1115/1.2834309Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study evaluates the variations in the acoustic properties of the human femur at ten evenly spaced locations along its length, as well as differences that exist within given transverse sections. Six pairs of human femora, three male and three female, were sectioned, ground, and polished, and scanned with a microprocessor-driven scanning acoustic microscope. Images with a resolution of approximately 140 μm were used to calculate the average acoustic impedances for each transverse cross section and each quadrant within a cross section. The mean acoustic impedance for all the cross sections was 7.69 ± 0.18 Mrayls. Variations were observed among the cross sections, and the central sections (4–7) had values that were statistically greater than the other more distal and proximal sections. Within the cross sections, the posterior quadrant had a lower average acoustic impedance compared to the other quadrants and this was statistically significant (Tukey’s multiple comparison test). The cross sections were further analyzed to determine several geometric parameters including the principal moments of inertia, polar moment of inertia, and the biomechanical shape index. The product of the acoustic impedance and the maximum moment of inertia provided a result that attempted to account for the acoustic property variation and the change in shape at the different section locations.
keyword(s): Acoustics , Mechanical properties , Cross section (Physics) , Impedance (Electricity) , Shapes , Inertia (Mechanics) , Microscopes , Resolution (Optics) , Rotational inertia , Polishing AND Biomechanics ,
|
Collections
Show full item record
contributor author | S. Weiss | |
contributor author | M. C. Zimmerman | |
contributor author | R. D. Harten | |
contributor author | F. G. Alberta | |
contributor author | A. Meunier | |
date accessioned | 2017-05-08T23:56:03Z | |
date available | 2017-05-08T23:56:03Z | |
date copyright | February, 1998 | |
date issued | 1998 | |
identifier issn | 0148-0731 | |
identifier other | JBENDY-25986#71_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/120117 | |
description abstract | This study evaluates the variations in the acoustic properties of the human femur at ten evenly spaced locations along its length, as well as differences that exist within given transverse sections. Six pairs of human femora, three male and three female, were sectioned, ground, and polished, and scanned with a microprocessor-driven scanning acoustic microscope. Images with a resolution of approximately 140 μm were used to calculate the average acoustic impedances for each transverse cross section and each quadrant within a cross section. The mean acoustic impedance for all the cross sections was 7.69 ± 0.18 Mrayls. Variations were observed among the cross sections, and the central sections (4–7) had values that were statistically greater than the other more distal and proximal sections. Within the cross sections, the posterior quadrant had a lower average acoustic impedance compared to the other quadrants and this was statistically significant (Tukey’s multiple comparison test). The cross sections were further analyzed to determine several geometric parameters including the principal moments of inertia, polar moment of inertia, and the biomechanical shape index. The product of the acoustic impedance and the maximum moment of inertia provided a result that attempted to account for the acoustic property variation and the change in shape at the different section locations. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | The Acoustic and Structural Properties of the Human Femur | |
type | Journal Paper | |
journal volume | 120 | |
journal issue | 1 | |
journal title | Journal of Biomechanical Engineering | |
identifier doi | 10.1115/1.2834309 | |
journal fristpage | 71 | |
journal lastpage | 76 | |
identifier eissn | 1528-8951 | |
keywords | Acoustics | |
keywords | Mechanical properties | |
keywords | Cross section (Physics) | |
keywords | Impedance (Electricity) | |
keywords | Shapes | |
keywords | Inertia (Mechanics) | |
keywords | Microscopes | |
keywords | Resolution (Optics) | |
keywords | Rotational inertia | |
keywords | Polishing AND Biomechanics | |
tree | Journal of Biomechanical Engineering:;1998:;volume( 120 ):;issue: 001 | |
contenttype | Fulltext |