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Figure 4 (A) Correlation of magnetic resonance and Doppler-measured E/A and E/Ea. (B) Bland-Altman plot of the difference between magnetic resonance (MR) and Doppler-measured E/A and between posteroseptal MR and Doppler-measured E/Ea. Horizontal lines show the mean difference between two methods ± 2 SDs. A = peak mitral velocity at atrial contraction; E = peak mitral velocity in early diastole; Ea = early diastolic tissue velocity.