Shear wave imaging of liquid inclusion in soft tissues
Abstract
An imaging technology, shear wave elasticity imaging (SWEI), was applied to the visualization of liquid-type pathologies in soft tissue. SWEI relies on the acoustic radiation force to remotely generate shear waves in tissues. A high-intensity acoustic field was induced by means of a single, spherically focused ultrasonic transducer to excite shear strain in soft tissue. Medium strain in the focal point and those located at some distance from it were registered using the Doppler approach. Reconstruction of tissue pathological zone spatial localization was made through the analysis of shear wave propagation time. The experiments were carried out using cow breast tissue containing the liquid inclusion about cm in size. There was shown the principal possibility of liquid inclusion localization in tissue through the analysis of shear wave propagation data.
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References
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