Two-Point Frequency Shift Method for Shear Wave Attenuation Measurement.

ABSTRACT: Ultrasound shear wave elastography (SWE) is an increasingly used noninvasive modality for quantitative evaluation of tissue mechanical properties. SWE typically uses an acoustic radiation force to produce laterally propagating shear waves that are tracked in the spatial and temporal domains, in order to obtain the wave velocity. One of the ways to study the viscoelasticity is through studying the shear wave phase velocity dispersion curves. Shear wave attenuation can be also characterized in viscoelastic tissues with methods that use multiple lateral data samples. In this article, we present an alternative method for measuring the shear wave attenuation without using a rheological model two-point frequency shift (2P-FS). The technique uses information related to the amplitude spectra FS of

SUBMITTER: Kijanka P 

PROVIDER: S-EPMC7138459 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature