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Pearson’s correlation for left atrial booster strain rate and disease-relevant factors in cardiac amyloidosis. (A) Correlation of left atrial booster strain rate and end-diastolic left atrial area. (B) Correlation of left atrial booster strain rate and left atrial ejection fraction. LA-EF: left atrial ejection fraction; LV-EF: left ventricular ejection fraction; LA: left atrial; LV: left ventricular; LVED: left ventricular end diastole.
