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Figure 3 Representative four-chamber cardiac variability imaging (CVI) images generated with stimulation (left ventricular [LV] only in this case) turned on or off. With pacing suspended, there was septal-apical dyskinesis characterized by early shortening followed by late systolic stretch. With LV lateral wall stimulation, dyskinesis declined and overall ejection improved. The radial lines on the initial still image delineate the sectors within the septum and lateral wall that were used for subsequent regional fractional area change analysis (see Fig. 4). For the accompanying video to Figure 3, please see the June 19th issue of JACC at http://www.cardiosource.com/library/journals/journal/suppdata?acronym=JAC&pii=s0735109702018831&filename=Figure_3.avi
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