Cavitation-induced shear wave elastography measures material stiffness in soft matter, suggesting new imaging techniques.
In cavitation induced shear wave elastography (CSWE), the stiffness of transparent soft matter can be imaged in the sub-millimeter scale through cavitation events. The shear wave is emitted by a laser-generated cavitation bubble expanding and collapsing close to a rigid boundary. The speed of shear wave is governed by the stiffness of the material. The propagation of the shear wave is recorded through photoelastic high-speed imaging, and the elastic modulus is then obtained through a local phase-velocity-based method.
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Ghasemian et al. (2025) studied this question.
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