Distribution of longitudinal wave velocity and hydroxyapatite crystallite orientation in bovine cortical bone

Yuichiro Yaoi; Kazufumi Yamamoto; Yu Yamato; Takahiko Yanagitani; Mami Matsukawa; Kaoru Yamazaki; Akira Nagano

doi:10.1250/ast.30.306

Distribution of longitudinal wave velocity and hydroxyapatite crystallite orientation in bovine cortical bone

Yuichiro Yaoi, Kazufumi Yamamoto, Yu Yamato, Takahiko Yanagitani, Mami Matsukawa, Kaoru Yamazaki, Akira Nagano

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The relationship between the ultrasonic wave velocity and the preferred orientation of HAp crystallites in bovine cortical bones was investigated. The distribution of velocity in the bone axis direction was measured considering the micro-structure and BMD. Cortical bones of four bovine left femurs were used and ring-shaped cortical bone specimens from the middle shaft were obtained. An ultrasonic pulse-echo method was used for the measurement of the longitudinal wave velocity. A pair of wideband self-made polyvinylidene fluoride (PVDF) transducers were used. The received signal was changed into the electric pulse signal, and amplified by a 40 dB preamplifier. Finally, the waveform of the signal was observed using a digital oscilloscope. A significant correlation between the velocity and the preferred orientation of HAp crystallites was observed in the bone with a plexiform structure.

Original language	English
Pages (from-to)	306-309
Number of pages	4
Journal	Acoustical Science and Technology
Volume	30
Issue number	4
DOIs	https://doi.org/10.1250/ast.30.306
Publication status	Published - 2009
Externally published	Yes

Keywords

Cortical bone
Hydroxyapatite
Longitudinal wave velocity

ASJC Scopus subject areas

Acoustics and Ultrasonics

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10.1250/ast.30.306

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Distribution of longitudinal wave velocity and hydroxyapatite crystallite orientation in bovine cortical bone. / Yaoi, Yuichiro; Yamamoto, Kazufumi; Yamato, Yu; Yanagitani, Takahiko; Matsukawa, Mami; Yamazaki, Kaoru; Nagano, Akira.

In: Acoustical Science and Technology, Vol. 30, No. 4, 2009, p. 306-309.

Research output: Contribution to journal › Article › peer-review

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abstract = "The relationship between the ultrasonic wave velocity and the preferred orientation of HAp crystallites in bovine cortical bones was investigated. The distribution of velocity in the bone axis direction was measured considering the micro-structure and BMD. Cortical bones of four bovine left femurs were used and ring-shaped cortical bone specimens from the middle shaft were obtained. An ultrasonic pulse-echo method was used for the measurement of the longitudinal wave velocity. A pair of wideband self-made polyvinylidene fluoride (PVDF) transducers were used. The received signal was changed into the electric pulse signal, and amplified by a 40 dB preamplifier. Finally, the waveform of the signal was observed using a digital oscilloscope. A significant correlation between the velocity and the preferred orientation of HAp crystallites was observed in the bone with a plexiform structure.",

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AU - Yaoi, Yuichiro

AU - Yamamoto, Kazufumi

AU - Yamato, Yu

AU - Yanagitani, Takahiko

AU - Matsukawa, Mami

AU - Yamazaki, Kaoru

AU - Nagano, Akira

PY - 2009

Y1 - 2009

N2 - The relationship between the ultrasonic wave velocity and the preferred orientation of HAp crystallites in bovine cortical bones was investigated. The distribution of velocity in the bone axis direction was measured considering the micro-structure and BMD. Cortical bones of four bovine left femurs were used and ring-shaped cortical bone specimens from the middle shaft were obtained. An ultrasonic pulse-echo method was used for the measurement of the longitudinal wave velocity. A pair of wideband self-made polyvinylidene fluoride (PVDF) transducers were used. The received signal was changed into the electric pulse signal, and amplified by a 40 dB preamplifier. Finally, the waveform of the signal was observed using a digital oscilloscope. A significant correlation between the velocity and the preferred orientation of HAp crystallites was observed in the bone with a plexiform structure.

AB - The relationship between the ultrasonic wave velocity and the preferred orientation of HAp crystallites in bovine cortical bones was investigated. The distribution of velocity in the bone axis direction was measured considering the micro-structure and BMD. Cortical bones of four bovine left femurs were used and ring-shaped cortical bone specimens from the middle shaft were obtained. An ultrasonic pulse-echo method was used for the measurement of the longitudinal wave velocity. A pair of wideband self-made polyvinylidene fluoride (PVDF) transducers were used. The received signal was changed into the electric pulse signal, and amplified by a 40 dB preamplifier. Finally, the waveform of the signal was observed using a digital oscilloscope. A significant correlation between the velocity and the preferred orientation of HAp crystallites was observed in the bone with a plexiform structure.

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KW - Hydroxyapatite

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Distribution of longitudinal wave velocity and hydroxyapatite crystallite orientation in bovine cortical bone

Abstract

Keywords

ASJC Scopus subject areas

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