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Table 3 Spearman correlation coefficients of 2D PISA EROA, 3D Rvol EROA and 3D PISA EROA

From: Three-dimensional transthoracic echocardiographic evaluation of tricuspid regurgitation severity using proximal isovelocity surface area: comparison with volumetric method

Variable 2D PISA EROA vs 3D PISA EROA 3D PISA EROA vs 3D Rvol EROA
r P r P
Total patient population 0.878 < 0.01 0.884 < 0.01
Primary TR 0.848 < 0.01 0.866 < 0.01
Secondary TR 0.88 < 0.01 0.897 < 0.01
With atrial fibrillation 0.721 < 0.01 0.59 < 0.01
Without atrial fibrillation 0.97 < 0.01 0.97 < 0.01
Eccentric TR 0.784 < 0.01 0.692 < 0.01
Centric TR 0.97 < 0.01 0.973 < 0.01
  1. TR tricuspid regurgitation, 2D two-dimensional, 3D three dimensional, Rvol regurgitant volume, PISA proximal isovelocity surface area, EROA effective regurgitant orifice area