Fig. 1

LA and LAA strain curves from speckle-tracking in patients with stroke (a, b) and without stroke (c, d). Yellow crosses indicate the positive peaks of each curve. LA and LAA MD was calculated as the SD of time to peak and expressed as a percentage of the R-R interval. The patients with stroke showed higher LA and LAA MD. LA, left atrium; LAA, left atrial appendage; MD, mechanical dispersion