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Figure 2 (a) Scatter plot of all pooled coronary flow reserve (CFR) values derived by thermodilution (CFR thermo) and those values from pressure measurements alone (CFR pressure) in artificial stenoses created by balloons inflated within six stented human coronary arteries (protocol 2). (b) Bland-Altman plot showing the relationship of the difference between pressure-derived and thermodilution-derived CFR and the mean of the two values.
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