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Updated: Jun 12, 2026

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
Entropy measurements in paroxysmal and persistent atrial fibrillation
R Cervigón1, J Moreno, R B Reilly
1Escuela Universitaria Politécnica, Campus Universitario, Group of Bioengineering Innovation (GIBI), DIEEAC, UCLM, Camino del Pozuelo sn 16071, Cuenca, Spain. raquel.cervigon@uclm.es
Abstract:
Recent studies on atrial fibrillation (AF) have identified different activation patterns in paroxysmal and persistent AF. In this study, bipolar intra-atrial registers from 28 patients (14 paroxysmal AF and 14 persistent AF) were analyzed in order to find out regional differences in the organization in both types of arrhythmias. The organization of atrial electrical activity was assessed in terms of nonlinear parameters, such as entropy measurements. Results showed differences between the atrial chambers with a higher disorganization in the left atrium in paroxysmal AF patients and a more homogenous behavior along the atria in persistent AF patients.
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