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Figure 4 (A) Scattergram of MVA determined by ECHO and CATH in 17 patients. (B) Bland-Altman plot of the average mean versus the differences between MRI planimetry and MVA derived at CATH. The solid line is the mean difference; the dotted lines mark standard deviations of the differences. Abbreviations as in Figures 2 and 3.
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