Related Experiment Video
Updated: Mar 19, 2026
Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery
Published on: December 6, 2024
Measurement of nonlinear property of artery wall using remote cyclic actuation
Hideyuki Hasegawa1, Hiroshi Kanai2
1Department of Electronic Engineering, Graduate School of Engineering, Tohoku University, 6-6-5 Aoba, Aoba-ku, Sendai, 980-8579, Japan. hasegawa@us.ecei.tohoku.ac.jp.
Purpose:
For tissue characterization of the arterial wall, we developed a "phased tracking" method to measure the strain (change in wall thickness) and elasticity of the arterial wall. To improve the accuracy of tissue characterization, we are now attempting to measure other mechanical properties in addition to elasticity.
Methods:
In this study, the change in elasticity during the cardiac diastole was measured with ultrasound by generating a change in internal pressure using remote cyclic actuation.
Results:
From the measured change in elasticity during cardiac diastole, the nonlinear property in the stress-strain relationship of the artery wall was estimated. In basic experiments using a silicone rubber tube and in vivo experiments in human carotid arteries.
Conclusion:
The proposal method enables the noninvasive measurement of the nonlinear mechanical property in addition to the elasticity of the arterial wall.
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