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. 2020 Dec 3;8:552357. doi: 10.3389/fbioe.2020.552357

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Copyright © 2020 Caluori, Odehnalova, Jadczyk, Pesl, Pavlova, Valikova, Holzinger, Novotna, Rotrekl, Hampl, Crha, Cervinka and Starek.

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.

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Atrial findings at the end of follow-up. (A) Epicardial circular discoloration observed on the left atrium; (B) diffuse endocardial discoloration in proximity of the pulmonary veins; (C) Posterior view of the 3D rendering of the manual segmentation of normal myocardium (red) and non-myocardial tissue (green), with white arrows pointing at pulmonary vein ostia; (D) Posterior view of the 3D rendering of an age-matched non-ablated control, segmented with same criteria; (E) trichrome staining of left atrium which underwent AC pulsed electric field ablation, showing circular continuous and transmural lesions; (F) trichrome staining of age-matched non-ablated control. Scalebar is 3 mm.