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Figure 3 Comparison of cardiovascular magnetic resonance (CMR) results to echocardiography: peak E is the maximum velocity at E-wave (a and b), and peak A is the maximum velocity at A-wave (c and d). (a) Scatter-plot of the peak E obtained by CMR versus echocardiography. (b) Bland-Altman plot of the mean results of both methods related to the mean difference. (c) Scatter-plot of the peak A obtained by CMR versus echocardiography. (d) Bland-Altman plot of the mean results of both methods related to the mean difference. SD = standard deviation.