Numerical datasets for acoustic radiation force-induced longitudinal shear wave

This repository contains the shear wave motion data generated by the Staggered Grid Finite Difference method, for the numerical tissue-mimicking materials for various viscosity values ranging from 0.05 Pa·s (control) to 2.50 Pa·s. Models with a higher µ₂/µ₁ ratio are considered more viscoelastic. The mass density, ρ, of the models is 1,000 kg/m³, and  the Poisson's ratio corresponds to the compressional wave speed of 1500 m/s. The tissue-mimicking viscoelastic models have a constant shear modulus (µ₁) of 8.33 kPa, resulting in a shear wave speed of 2.8 m/s. These datasets were used in the following work: 

• Liu, Hsiao-Chuan, et al. "Acoustic radiation force-induced longitudinal shear wave for ultrasound-based viscoelastic evaluation." Ultrasonics 142 (2024): 107389.