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. 2015 Nov 9;4(11):e002349. doi: 10.1161/JAHA.115.002349

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© 2015 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley Blackwell.

This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Segmentation of LA in AP (A), PA (B), LAO (C), and RAO (D) view. Numbers 1 to 6 indicate anterior wall, roof, lateral wall, posterior wall, septum, and floor, respectively. AP indicates anteroposterior; LA, left atrium; LAA, left atrial appendage; LAO, left anterior oblique; LIPV, left inferior pulmonary vein; LSPV, left superior pulmonary vein; MVA, mitral valve annulus; PA, posteroanterior; RAO, right anterior oblique; RIPV, right inferior pulmonary vein; RSPV, right superior pulmonary vein.