TABLE 2.

Intertechnique Consistency for Quantifying Regurgitant Volume

	Mitral Regurgitation			Tricuspid Regurgitation
	Pearson	95% Limits of agreement	ICC	Pearson	95% Limits of agreement	ICC
Regurgitant flow volume (L/min)
Direct	0.813	(−2.72, 1.90)	0.804	0.985	(−1.27, 1.61)	0.982
Indirect	0.971	(−0.76, 0.98)	0.953	0.977	(−0.96, 1.70)	0.973
Regurgitant fraction (%)
Direct	0.868	(−16.85, 13.03)	0.870	0.974	(−4.35, 11.85)	0.956
Indirect	0.933	(−13.41, 14.41)	0.878	0.837	(−12.85, 20.43)	0.785
Regurgitant volume (mL/beat)
Direct	0.793	(−39.50, 25.68)	0.771	0.972	(−20.67, 27.42)	0.971
Indirect	0.952	(−13.13, 14.24)	0.949	0.959	(−16.72, 28.72)	0.955

Data in parentheses are Bland-Altman 95% limits of agreement.

ICC = interclass correlation coefficient, 2-way random effects absolute agreement model.