A Combinational Method of Laser and Hydrophone Measurements in A Combinational Method of Laser and Hydrophone Measurements in Ultrasound Propagation for Evaluating Elasticity of Regenerating Cartilage Sample
A Combinational Method of Laser and Hydrophone Measurements in A Combinational Method of Laser and Hydrophone Measurements in Ultrasound Propagation for Evaluating Elasticity of Regenerating Cartilage Sample
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超声传播中激光和水听器测量的组合方法用于评估再生软骨样品的弹性
DOI：
10.1109/ultsym.2010.5935566
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
and Tsuyoshi. Shiina
中科院分区：
文献类型：
--
作者：
Naotaka. Nitta;Kazuhiko Homma;Masaki Misawa;K. Hoshi;Shuhui. Bu;and Tsuyoshi. Shiina
测量软骨硬度随时间的变化有助于评价再生软骨的成熟度。在这项研究中，一个激光和激光为基础的超声振动测量施加到测量对象（样品）的薄再生软骨样品的刚度评估进行了研究。分别用激光多普勒测振仪和水听器测量了样品在施加正弦超声时的表面质点速度和声压。然后，通过使用测量的粒子速度和声压来评估声阻抗。通过琼脂基均质模型进行基础实验，研究了该方法的可行性。此外，这种方法也适用于在体外测量使用耳软骨样品再生比格犬。
It is useful for maturity evaluation of regenerating cartilage to measure the temporal change of its stiffness. In this study, a laser and hydrophone-based measurement of ultrasound vibration applied to the measuring object (sample) is investigated for evaluating the stiffness of thin regenerating cartilage sample. Surface particle velocity and acoustic pressure of the sample when applying sinusoidal ultrasound to the sample are measured by a laser Doppler vibrometer and a hydrophone, respectively. Then the acoustic impedance is evaluated by using the measured particle velocity and acoustic pressure. The feasibility of this method was investigated by conducting fundamental experiments using agar-based homogeneous phantoms. Moreover, this method was also applied to in vitro measurements using auricular cartilage samples regenerated in beagles.