Fig. 5

Bland-Altman scatterplot demonstrating the agreement in the measurement of MV intercommissural diameter (a), area of mitral annulus (b), anterior leaflet length (c) and posterior leaflet length (d) measured by automated software and manual assessment. Intercommissural diameter measured using automated software was underestimated when compared to manual evaluation. The solid horizontal line in each plot represents the mean systematic difference (bias) between the two methods, whereas the dashed lines indicate the limits of agreement (95 % confidence interval of differences)