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. 2021 Feb 26;12:646023. doi: 10.3389/fphys.2021.646023

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Copyright © 2021 Williams, Roney, Connolly, Sim, Whitaker, O’Hare, Kotadia, O’Neill, Corrado, Bishop, Niederer, Wright, O’Neill and Linton.

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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Bipolar voltage mapping. (A) Voltage maps created using Carto, with a voltage threshold of 0.5 mV. (B) Voltage maps created using OpenEP with a voltage threshold range of 0.4–0.6 mV applied to the voltage mapping data exported by Carto. OpenEP command: drawMap(userdata, 'type', 'bip', 'coloraxis', [0.4 0.6], 'orientation', 'pa', 'colorfillthreshold', 10); (C) Voltage maps created using OpenEP with a voltage threshold range of 0.45–0.55 mV, interpolated from the raw electrogram data at every mapping point and with a color fill threshold of 10 mm. OpenEP command: interpBip = generateInterpData(userdata, 'bip-map'); drawMap(userdata, 'data', interpBip, 'type', 'bip', 'coloraxis', [0.4 0.6], 'orientation', 'pa'). AP, antero-posterior; PA, postero-anterior; Bi, bipolar voltage.