“…Soft tissue biomechanics (e.g., stiffness, elasticity, and viscosity) are highly dependent upon tissue structure, materials, and composition, and they often change alongside pathological changes, such as swelling, inflammation, and tumor growth ( Dupps and Wilson, 2006 ; Sigrist et al, 2017 ; Chong and Dupps, 2021 ). Elastic imaging methods, such as ultrasound elastography ( Ophir et al, 1991 ) and magnetic resonance imaging (MRI) elastography ( Muthupillai et al, 1995 ), have been developed to identify lesion areas based on mechanical contrast (e.g., strain map or wave propagations).…”