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Figure 2 Interobserver Correlation and Bland-Altman Graphs of DI
(A) Interobserver correlation scatterplot of the individual DI measurements by Observer 1 and 2. The solid line is the linear regression line. (B) Bland-Altman graph plotted to assess for bias and limits of agreement between the measurements by Observer 1 and 2. The solid line is the bias (mean of the differences) between the measurements by Observer 1 and 2. The dashed lines are the upper and lower limits of agreement (bias ± 2 SD of bias). DI = dyssynchrony index.
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