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Multimodality tissue tracking volume analysis (A, green line), strain analysis (B, red line), and strain rate analysis (C, blue line). Vmax, maximum volume; Vmin, minimum volume; VpreA, pre-atrial contraction volume; EV, emptying volume; Smax, global longitudinal strain; Srmax, global maximum longitudinal strain rate; Sre, early negative diastolic peak of the LA strain rate; Sra, late negative diastolic peak of the LA strain rate.
