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Figure 1 Comparison between raw echo-image obtained prior to contrast injection (A), unprocessed image after opacification with contrast agent (B) and cardiac variability imaging (CVI)-processed image (C). The CVI method enhanced contrast between the blood pool and myocardial wall to improve quantitation of endocardial motion. Panel D shows the superimposition of the traced endocardial border. For the accompanying video to Figure 1, please see the June 19th issue of JACC at http://www.cardiosource.com/library/journals/journal/suppdata?acronym=JAC&pii=s0735109702018831&filename=Figure_1.avi
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