Non-invasive location of re-entrant propagation patterns during atrial fibrillation

Functional rotors have been defined as a mechanism responsible for the maintenance of atrial fibrillation (AF). These re-entrant patterns can be identified in the atrial wall by detecting phase singularities (PS) in the epicardial phase maps. In this study, we evaluate the potential role of body surface phase maps to non-invasively locate atrial sites that may harbor rotors. This technology could be of great interest for diagnosis and treatment of AF.