Fig. 2

Relationships among QRS duration, the ratio of the delayed wall, and ventricular function. Dot distribution maps in the upper row show clinical profiles of each patient (one dot); colors were according to plasma B-type natriuretic peptide levels (BNP, a) and estimated ventricular contractility (estEes, b) in the graph fields with QRS duration Z-score on the vertical axis and the ratio of the delayed wall on the horizontal axis. Square and circle dots represent the morphology of the dominant ventricle as the left and right ventricles, respectively. Contour plots in the lower row exhibits iso-response lines of BNP and estEes in response surface methodology as shown in Table 2. The highest BNP and lowest estEes at 10 standard deviations of QRS duration (black triangles) were located at the ratio of the delayed wall of 62% and 68%, respectively