A combinational method of laser and hydrophone measurements in ultrasoundpropagation for evaluating elasticity of regenerating cartilage sample

Naotaka Nitta, Kazuhiro Homma, Masaki Misawa, Kazuto Hoshi, Shuhui Bu, Tsuyoshi Shiina

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

It is useful for maturity evaluation of regenerating cartilage to measurethe temporal change of its stiffness. In this study, a laser andhydrophone-based measurement of ultrasound vibration applied to the measuringobject (sample) is investigated for evaluating the stiffness of thinregenerating cartilage sample. Surface particle velocity and acoustic pressureof the sample when applying sinusoidal ultrasound to the sample are measured bya laser Doppler vibrometer and a hydrophone, respectively. Then the acousticimpedance is evaluated by using the measured particle velocity and acousticpressure. The feasibility of this method was investigated by conductingfundamental experiments using agar-based homogeneous phantoms. Moreover, thismethod was also applied to in vitro measurements using auricular cartilagesamples regenerated in beagles.

本文言語English
ホスト出版物のタイトル2010 IEEE International Ultrasonics Symposium, IUS 2010
ページ1400-1403
ページ数4
DOI
出版ステータスPublished - 2010
外部発表はい
イベント2010 IEEE International Ultrasonics Symposium, IUS 2010 - San Diego, CA, United States
継続期間: 2010 10月 112010 10月 14

出版物シリーズ

名前Proceedings - IEEE Ultrasonics Symposium
ISSN(印刷版)1051-0117

Conference

Conference2010 IEEE International Ultrasonics Symposium, IUS 2010
国/地域United States
CitySan Diego, CA
Period10/10/1110/10/14

ASJC Scopus subject areas

  • 音響学および超音波学

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