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Figure 2a. Bland-Altman plots depict interobserver agreement regarding LV measurements obtained when trabeculae were included in (a, c, e, and g) or excluded from (b, d, f, and h) the LV cavity volume. On each plot, solid line represents mean value of the differences in measurements between the two observers, dotted lines represent ±2 SDs, and shaded areas represent confidence intervals. The mean value of the two measurements is plotted along the x-axis, and the difference (observer 1 measurement minus observer 2 measurement) is plotted along the y-axis. EDV = ED LV volume, ESV = ES LV volume. Agreement between the two independent observers was better when measurements were obtained with the trabeculae included in the cavity volume (a, c, e, and g) than when measurements were obtained with the trabeculae excluded from the cavity volume (b, d, f, and h).
