A method to noninvasively identify cardiac bioelectrical sources.

ABSTRACT:

Background

We have introduced a method to guide radiofrequency catheter ablation (RCA) procedures that estimates the location of a catheter tip used to pace the ventricles and the target site for ablation using the single equivalent moving dipole (SEMD).

Objective

To investigate the accuracy of this method in resolving epicardial and endocardial electrical sources.

Methods

Two electrode arrays, each of nine pacing electrodes at known distances from each other, sutured on the left- and right-ventricular (LV and RV) epicardial surfaces of swine, were used to pace the heart at multiple rates, while body surface potentials from 64 sites were recorded and used to estimate the SEMD location. A similar approach was followed for pacing from catheters in the LV and RV.

Resu

SUBMITTER: Sohn K 

PROVIDER: S-EPMC4205085 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature