Fig. 1
Fast left atrial (LA) long-axis strain (LA-LAS) was measured in 2- and 4-chamber views. Three small squares were manually selected at three anatomical reference points that were automatically tracked in the cardiac cycle. D: the length between the midpoint of posterior LA wall and the left atrioventricular junction on standard cine-CMR 2-chamber (Danterior and Dinferior) and 4-chamber (Dseptal and Dlateral) views. ms millisecond