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Figure 2 Comparison of standard deviation as a measure of variability of coronary flow velocity reserve (CFVR) and corrected coronary flow velocity reserve (CFVRcorr). The figure indicates that the standard deviation of the new parameter CFVRcorr is significantly lower than the standard deviation of traditional CFVR. LAD = left anterior descending; LCX = left circumflex artery; RCA = right coronary artery.
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