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Distribution of CFR
(A) Histogram of Doppler-derived coronary flow reserve (CFR) measurements. (B) Histogram of thermodilution-derived CFR measurements. (C) Average CFR values for prespecified range of <2.0, 2.0 to 2.5, and >2.5. ∗Statistically significant difference between groups (P < 0.05). Numbers and middle bars depict mean values, and error bars depict 95% confidence intervals.
