Figure 9.

Wall motion abnormality score (index for abnormal wall motion) and regional dispersion in repolarization times. The averaged dispersion in RT of the 11 patients with wall motion score 0 is summarized by the two stars at the ordinate. At WMA score 1 and local dispersion 25 ms there were two patients. A small disturbance of normal wall motion, i.e., hypokinesia in only 1 or 2 out of 12 segments is associated with substantial dispersion in RT. Although the relation between WMA score and regional dispersion in repolarization time (restricted to the 12 patients with WMA) was not significant, the regression line Y = −0.71 × WMA score + 93.0 (r = −0.229, n = 12) had an intercept at the Y-axis of 93, substantially more than the regional dispersion of 53 ± 4.1 ms in the group with normal wall motion (filled asterisk).