Front. Physiol. Frontiers in Physiology Front. Physiol. 1664-042X Frontiers Media S.A. 10.3389/fphys.2018.01260 Physiology Correction Corrigendum: Real-Time Rotational Activity Detection in Atrial Fibrillation Ríos-Muñoz Gonzalo R. 1 2 * Árenal Ángel 2 3 Artés-Rodríguez Antonio 1 2 1Signal Theory and Communications Department, Universidad Carlos III de Madrid, Madrid, Spain 2Gregorio Marañón Health Research Institute, Madrid, Spain 3Department of Cardiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain

Edited by: Olivier Bernus, Université de Bordeaux, France

Reviewed by: Sanjay Ram Kharche, University of Western Ontario, Canada; Vadim V. Fedorov, The Ohio State University, United States

 *Correspondence: Gonzalo R. Ríos-Muñoz griosm@tsc.uc3m.es

This article was submitted to Cardiac Electrophysiology, a section of the journal Frontiers in Physiology

 04 09 2018 2018 9 1260 18 06 2018 21 08 2018 Copyright © 2018 Ríos-Muñoz, Arenal and Artés-Rodríguez. 2018 Ríos-Muñoz, Arenal and Artés-Rodríguez

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

 A Corrigendum on Real-Time Rotational Activity Detection in Atrial Fibrillation by Ríos-Muñoz, G. R., Arenal, Á., and Artés-Rodríguez, A. (2018) Front. Physiol. 9:208. doi: 10.3389/fphys.2018.00208 atrial fibrillation multi-electrode catheter signal processing real-time rotors rotational activity

In the original article, we neglected to include the funder Beca de la Sección de Electrofisiología y Arritmias de la SEC. Therefore, the Funding section was updated:

This work has been partly supported by MINECO/FEDER (ADVENTURE, id. TEC2015-69868-C2-1-R), Comunidad de Madrid (project CASI-CAM-CM, id. S2013/ICE-2845), and the grant Beca de la Sección de Electrofisiología y Arritmias de la SEC.

We found a caption error in Figure 8, where labels A–C should be reordered to (A) Sinus Rhythm. (B) Rotor. (C) Chaotic wavefront collision, and the sign of the second reference to +Γth should be changed to −Γth. The caption was updated to reflect this change:

Figure 8. Rotational activity detector in in silico signals. Detection performed on the three simulation scenarios. The method detects rotational activation if the value of Γ[n] exceeds the upper threshold +Γth or falls below the lower threshold −Γth. The sign of Γ[n] reflects the rotational gyre direction, being positive if the gyre matches the rotation mask spin (clockwise/counterclockwise depending on the chosen pattern), or negative if the propagation rotates in the opposite mask direction. For the simulation cases we applied the detection on the full Γ[n] and the interpolated Γ^[n] grids to compare both outcomes. Signals from top to bottom: (A) Sinus rhythm. (B) Rotor. (C) Chaotic wavefront collision. Parameters were γ = 150 samples and Γth = γ/7.

Additionally, the caption in the Figure 12 should reference the Figure 7D, and not Figure 3C.

The authors apologize for these errors and state that this does not change the scientific conclusions of the article in any way.

The original article has been updated.

Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.