Factors affecting basket catheter detection of real and phantom rotors in the atria: A computational study.

ABSTRACT: Anatomically based procedures to ablate atrial fibrillation (AF) are often successful in terminating paroxysmal AF. However, the ability to terminate persistent AF remains disappointing. New mechanistic approaches use multiple-electrode basket catheter mapping to localize and target AF drivers in the form of rotors but significant concerns remain about their accuracy. We aimed to evaluate how electrode-endocardium distance, far-field sources and inter-electrode distance affect the accuracy of localizing rotors. Sustained rotor activation of the atria was simulated numerically and mapped using a virtual basket catheter with varying electrode densities placed at different positions within the atrial cavity. Unipolar electrograms were calculated on the entire endocardial surface and at each o

SUBMITTER: Martinez-Mateu L 

PROVIDER: S-EPMC5854439 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature