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. 2017 May 16;10(5):e004899. doi: 10.1161/CIRCEP.116.004899

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© 2017 The Authors.

Circulation: Arrhythmia and Electrophysiology is published on behalf of the American Heart Association, Inc., by Wolters Kluwer Health, Inc. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial-NoDerivs License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited, the use is noncommercial, and no modifications or adaptations are made.

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Figure 8. — For clinical atrial fibrillation (AF) data, reducing the number of electrodes in high-density mapping catheters increased the number of missing and false phase singularity (PS) detections. A, Box plots to show the percentage of full-resolution PSs not present in downsampled data measured across 127 catheter recordings, for unipolar and bipolar electrode recordings. B, Box plots to show the percentage of PSs in downsampled data not present in full-resolution data. In all cases, the boxes indicate the interquartile range (IQR) and median of the data (red line); the whiskers extend to a maximum of 1.5×IQR; and the crosses represent outliers.