Figure 4
Comparison of ERO measured by 2D TTE and ARO measured by CMR. A. Pearson correlation analysis showed a strong correlation between 2D TTE PISA method and CMR planimetry of the ARO (r = 0.76, p < 0.0001). B. Bland-Altman analysis showed good agreement between both imaging techniques of the regurgitant orifice (average bias -5.7 mm2, 95% confidence interval -37 to +26 mm2), less accordance was observed in some patients with an ERO ≥50 mm².