1. Optical coherence elastography (OCE) method under acoustic radiation force excitation using OCT doppler variance methods and OCT correlation-based methods

    Optical coherence elastography (OCE) method under acoustic radiation force excitation using OCT doppler variance methods and OCT correlation-based methods

    A system for imaging and quantifying shear wave and shear modulus under orthogonal acoustic radiation force (ARF) excitation using the OCT Doppler variance apparatus. The ARF perpendicular or with at least a perpendicular component to the OCT beam is produced by a remote ultrasonic transducer. The OCT Doppler variance apparatus, which is sensitive to the transverse vibration, is used to measure the ARF induced vibration. For analysis of the shear modulus, the Doppler variance apparatus is utilized to visualize shear wave propagation. The propagation velocity of the shear wave is measured and then used to quantitatively map the shear modulus.

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