【摘 要】
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Background, Motivation and Objective Shear wave velocity measurement which uses continuous shear wave excited by a vibrator is an effective method to evaluate the stiffness of tissue near skin, such a
【机 构】
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Grad. School of Science and Technology, Gunma University, Kiryu, Japan
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Background, Motivation and Objective Shear wave velocity measurement which uses continuous shear wave excited by a vibrator is an effective method to evaluate the stiffness of tissue near skin, such as skeletal muscle and breast. A problem of this method is that the shear wave does not always propagate to the correct direction, for example the direction to muscle fiber, due to the diffraction and the refraction at tissue boundary. However, if the propagation of shear wave is visualized in real-time, the accuracy of velocity measurement improves dramatically, because the required wavefront is produced on ROI by adjusting the position of vibrator and the shape of vibration head which is attached to the tissue surface. This paper proposes a novel real-time imaging method of continuous shear wave which propagates in soft tissue.
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