Confidence intervals and percent change in mean for interobserver and intraobserver variability for SS, s-SR, e-SR and a-SR.

SS = systolic strain; s-SR = systolic strain rate; e-SR = early diastolic strain rate; a-SR = late diastolic strain rate; CI: Confidence interval. Confidence intervals and percent change in mean for interobserver and intraobserver variability for SS, s-SR, e-SR and a-SR.SS即收缩期应变（systolic strain）；s-SR即收缩期应变率（systolic strain rate）；e-SR即舒张早期应变率（early diastolic strain rate）；a-SR即舒张晚期应变率（late diastolic strain rate）；CI为置信区间（Confidence interval）。 本数据集包含上述四项指标的观察者间与观察者内变异的置信区间及均值变化百分比。