Quantification of Endogenous Brain Tissue Displacement Imaging by Radiofrequency Ultrasound.

ABSTRACT: The purpose of this paper is a quantification of displacement parameters used in the imaging of brain tissue endogenous motion using ultrasonic radiofrequency (RF) signals. In a preclinical study, an ultrasonic diagnostic system with RF output was equipped with dedicated signal processing software and subject head-ultrasonic transducer stabilization. This allowed the use of RF scanning frames for the calculation of micrometer-range displacements, excluding sonographer-induced motions. Analysis of quantitative displacement estimates in dynamical phantom experiments showed that displacements of 55 µm down to 2 µm were quantified as confident according to Pearson correlation between signal fragments (minimum p ≤ 0.001). The same algorithm and scanning hardware were used in experiments and cli

SUBMITTER: Jurkonis R 

PROVIDER: S-EPMC7168898 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature