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. 2020 Feb 6;36(5):921–928. doi: 10.1007/s10554-020-01785-w

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© The Author(s) 2020

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Fig. 1 — Biplane method. Cine 2- (a) and 4-chamber (b) images illustrating contoured (yellow) left atrial areas for volume (and ejection fraction) derivation excluding the left atrial appendage and pulmonary veins; LAA left atrial appendage; LSPV left superior pulmonary vein; RIPV right inferior pulmonary vein