Paper Title:
Modeling of Ultrasonic Wave Propagation Path through Cancellous Bone and Quantitative Estimation of Bone Density and Bone Quality
  Abstract

Osteoporosis is a disease characterized by decreasing bone density, and is assessed by the bone mass density of cancellous bone. An X-ray method is widely used for noninvasive measurement of bone mass density [mg/cm3]. An ultrasonic method has the potential to evaluate the elastic properties, however measured ultrasonic parameters are the slope of frequency dependent attenuation (BUA [dB/MHz]) and the speed of sound (SOS [m/s]), not the bone mass density [mg/cm3]. In previous study, two longitudinal waves, the fast and slow waves, were observed in cancellous bone. In this study, the propagation path through cancellous bone is modeled to specify the causality between ultrasonic wave parameters and bone density. Then bone density and bone elasticity are quantitatively formulated. A novel ultrasonic bone densitometry, prototype LD-100, have been developed. The bone density [mg/cm3] and the bone elasticity [GPa] are evaluated by ultrasonic parameters based on the fast and slow waves in cancellous bone using a modeling of ultrasonic wave propagation path.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
857-861
DOI
10.4028/www.scientific.net/KEM.321-323.857
Citation
T. Otani, "Modeling of Ultrasonic Wave Propagation Path through Cancellous Bone and Quantitative Estimation of Bone Density and Bone Quality", Key Engineering Materials, Vols. 321-323, pp. 857-861, 2006
Online since
October 2006
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Fumio Nogata
Abstract:We have proposed a new technique for visualising trabecular architecture of spongy bone using ultrasound A-mode signals from a transducer of...
99
Authors: H.Y. Yu, Zhen Bing Cai, Zhong Rong Zhou, Min Hao Zhu
Abstract:Under simulated human physiological solution, the fretting behaviors of flat cortical bone specimen from fresh human femur in the transverse...
607
Authors: Xue Jun Wang, R. Wang, J.M. Luo, Ji Yong Chen, Xing Dong Zhang
Abstract:It is important to obtain mechanical coupling between dental implants and bone, because the lack of mechanical coupling may cause bone loss...
657
Authors: Tae Woo Lee, Chang Yong Ko, Dae Gon Woo, Han Sung Kim
Abstract:Several researchers investigated the mechanical characteristics of human trabecular bone using finite element analysis (FEA) based on micro...
41
Authors: Daniel Lin, Qing Li, Wei Li, Michael V. Swain
Abstract:Currently, titanium dominates the dental implant materials due to its strength and bio-inerrability. The use of titanium implant had...
1035