Phase Velocity Estimation With Expanded Bandwidth in Viscoelastic Phantoms and Tissues.

ABSTRACT: Ultrasound shear wave elastography (SWE) is a technique used to measure mechanical properties to evaluate healthy and pathological soft tissues. SWE typically employs an acoustic radiation force (ARF) to generate laterally propagating shear waves that are tracked in the spatiotemporal domains, and algorithms are used to estimate the wave velocity. The tissue viscoelasticity is often examined through analyzing the shear wave phase velocity dispersion curves, which is the variation of phase velocity with frequency or wavelength. A number of available methods to estimate dispersion exist, which can differ in resolution and variance. Moreover, most of these techniques reconstruct dispersion curves for a limited frequency band. In this work, we propose a novel method used for dispersion curve c

SUBMITTER: Kijanka P 

PROVIDER: S-EPMC8087630 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature