Effect of Trabecular Irregularity on Fast and Slow Wave Propagations through Cancellous Bone
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概要
- 論文の詳細を見る
Cancellous bone is composed of a porous network of trabeculae, with soft tissues (mostly bone marrow) in the pore spaces. The propagation phenomena of ultrasonic waves in cancellous bone largely depend on this complicated trabecular structure, and fast and slow longitudinal waves can propagate through cancellous bone in the direction parallel to the trabecular orientation. In a previous paper [A. Hosokawa: Jpn. J. Appl. Phys. 45 (2006) 4697], it was suggested that the irregularity in the trabecular structure could affect both the fast and slow wave propagations. To investigate the effect of trabecular irregularity in detail, in this study, the fast and slow wave propagations through cancellous bone were numerically simulated using the viscoelastic finite-difference time-domain (FDTD) method. The simulated results showed that the two waves could easily propagate through a regular trabecular structure. It was also shown that the porosity dependences of their propagation properties were closely related to trabecular irregularity.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-07-30
著者
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Hosokawa Atsushi
Department Of Biology Faculty Of Science Chiba University
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Hosokawa Atsushi
Department of Electrical and Computer Engineering, Akashi National College of Technology, 679-3 Nishioka, Uozumi, Akashi, Hyogo, 674-8501 Japan
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