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Figure 3 Comparison of myocardial contrast intensity (CI) and calibrated CI in 12 myocardial segments in normal volunteers. Myocardial CI (left) differed among myocardial segments in the apical four- and two-chamber views. It was the highest in the apical segments and the lowest in the basal segments. After the calibration (right), the intersegmental differences significantly decreased. All bars indicate the mean value ± SD, and the mean values are expressed with them. Abbreviations of myocardial segments are the same as in Figure 1.
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