Non-invasive Characterization of Focal Arrhythmia with Electromechanical Wave Imaging in Vivo.

ABSTRACT: There is currently no established method for the non-invasive characterization of arrhythmia and differentiation between endocardial and epicardial triggers at the point of care. Electromechanical wave imaging (EWI) is a novel ultrasound-based imaging technique based on time-domain transient strain estimation that can map and characterize electromechanical activation in the heart in vivo. The objectives of this initial feasibility study were to determine that EWI is capable of differentiating between endocardial and epicardial sources of focal rhythm and, as a proof-of-concept, that EWI could characterize focal arrhythmia in one patient with premature ventricular contractions (PVCs) before radiofrequency (RF) ablation treatment. First, validation of EWI for differentiation of surface of or

SUBMITTER: Costet A 

PROVIDER: S-EPMC6163072 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature