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

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

Variable	2D PISA EROA vs 3D PISA EROA		3D PISA EROA vs 3D Rvol EROA
Variable	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

TR tricuspid regurgitation, 2D two-dimensional, 3D three dimensional, Rvol regurgitant volume, PISA proximal isovelocity surface area, EROA effective regurgitant orifice area

ISSN: 1476-7120