1. Measurement of elastic wave propagation velocity near tissue surface by optical coherence tomographyand laser Doppler velocimetry

    Measurement of elastic wave propagation velocity near tissue surface by optical coherence tomographyand laser Doppler velocimetry

    We demonstrate a new technique for measuring the velocity of elastic waves propagating near a tissue surface by swept-source optical coherence tomography (OCT). We establish a theory for estimating the elastic wave velocity from the OCT images taken with a slow mechanical scanning, which is experimentally verified using agar and tissue samples. The elastic wave velocity measured by this technique agrees well with previous results and that measured with a laser Doppler velocimeter. We also carry out some trial measurements of the elastic wave velocities of several tissue samples by this method.

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