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. 2015 Apr 27;4(4):e001844. doi: 10.1161/JAHA.115.001844

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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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Figure 3. — LA measurements by tissue‐tracking CMR in patients with and without stroke. A, The LA volume, (B) LA global longitudinal strain, and (C) LA strain rate in a patient with stroke (red line) and without stroke (blue line). The patient with stroke has a larger LA volume and smaller strain and strain rate. The LA serves as a reservoir during LV systole, as a conduit during LV early diastole, and as an active pump during late diastole. CMR indicates cardiac magnetic resonance; LA, left atrial; LV, left ventricular; S_max, maximum strain; S_preA, pre‐atrial contraction strain; SR_a, strain rate at atrial contraction; SR_e, strain rate at LV early diastole; SR_s, maximum strain rate; V_max, maximum indexed volume; V_min, minimum indexed volume; V_preA, pre‐atrial contraction indexed volume.