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The effect of charge density on the velocity and attenuation of ultrasound waves in human cancellous bone

Title
The effect of charge density on the velocity and attenuation of ultrasound waves in human cancellous bone
Author
윤영준
Keywords
Cancellous bone; Poroelasticity; Ultrasound; Charge density
Issue Date
2018-08
Publisher
ELSEVIER SCI LTD
Citation
JOURNAL OF BIOMECHANICS, v. 79, page. 54-57
Abstract
Cancellous bone is a highly porous material, and two types of waves, fast and slow, are observed when ultrasound is used for detecting bone diseases. There are several possible stimuli for bone remodelling processes, including bone fluid flow, streaming potential, and piezoelectricity. Poroelasticity has been widely used for elucidating the bone fluid flow phenomenon, but the combination of poroelasticity with charge density has not been introduced. Theoretically, general poroelasticity with a varying charge density is employed for determining the relationship between wave velocity and attenuation with charge density. Fast wave velocity and attenuation are affected by porosity as well as charge density; however, for a slow wave, both slow wave velocity and attenuation are not as sensitive to the effect of charge density as they are for a fast wave. Thus, employing human femoral data, we conclude that charged ions gather on trabecular struts, and the fast wave, which moves along the trabecular struts, is significantly affected by charge density. (C) 2018 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/abs/pii/S0021929018306626?via%3Dihubhttp://repository.hanyang.ac.kr/handle/20.500.11754/119726
ISSN
0021-9290; 1873-2380
DOI
10.1016/j.jbiomech.2018.07.048
Appears in Collections:
CENTER FOR CREATIVE CONVERGENCE EDUCATION[S](창의융합교육원) > ETC
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