Increasing shear wave phase velocity trajectory interrogation using curved shear wave geometries for ultrasound shear wave elasticity imaging

In this work, we introduce novel shear wave excitation techniques to interrogate a broad range of shear wave trajectories with applications towards anisotropic material characterization. The two techniques discussed in this work, fixed geometry, divergent shear wave excitations and synthetic aperture shear wave excitations, interrogated a broad range of trajectories spanning more than 50 degrees, on par or exceeding the range of trajectories interrogated with steered linear SSI techniques across multiple steering angles. Further, each individual fixed geometry divergent shear wave excitation technique in this work interrogated trajectories spanning ranges greater than 30 degrees each.

Duke Scholars

Author Kathryn Radabaugh Nightingale Biomedical Engineering