Fig. 2From: Independent prognostic value of left atrial function by two-dimensional speckle tracking imaging in patients with non -ST-segment-elevation acute myocardial infarctionMeasurement of global longitudinal left atrial strain rate from an apical four-chamber view. The white dashed curve represents the global longitudinal strain rate during the cardiac cycle. GLSRa = global left atrial peak negative strain rate during late ventricular diastole. GLSRs = global left atrial peak positive strain rate during ventricle systole. GLSRe = global left atrial peak negative strain rate during early ventricular diastole . AVC = aortic valve closureBack to article page