(Color online) Ultrasound based surface wave model for measuring elastic properties of tissue. The surface wave is generated noninvasively by the piston-like localized radiation force of ultrasound. The surface wave is measured noncontact with a laser vibrometer.
(Color online) Experimental setup for measurement of the surface wave in an ultrasound phantom. The ultrasound transducer is behind the phantom which generates a force on the front surface of the phantom. The surface vibration on the front surface with paint is measured with a laser vibrometer.
(Color online) Regression equation is with a confidence interval and the wave speed is at .
Wave number ratios among-shear wave, surface wave, and compression wave for different materials.
Wave velocity ratio between the shear wave and surface wave for different materials.
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