Table 3.
Correlation analyses
Measures | Correlation with CVP R2 (95% CI) |
---|---|
IVC 2DE maximal deflection (mm) | 0.58 (0.38, 0.73) |
IVC 2DE minimal deflection (mm) | 0.57 (0.37, 0.72) |
IVC volume (mm2) | 0.64 (0.46, 0.77) |
IVC 3DE maximal deflection vertical axis (mm) | 0.32 (0.03, 0.55) |
IVC 3DE maximal deflection perpendicular axis (mm) | 0.51 (0.26, 0.67) |
IVC 3DE minimal deflection vertical axis (mm) | 0.32 (0.04, 0.56) |
IVC 3DE minimal deflection perpendicular axis (mm) | 0.50 (0.26, 0.69) |
IVC 3DE area maximal deflection (cm2) | 0.49 (0.24, 0.68) |
IVC 3DE area minimal deflection (cm2) | 0.46 (0.19, 0.67) |
2DE two-dimensional echocardiography, 3DE three-dimensional echocardiography, CI confidence interval, IVC inferior vena cava, IVC volume, defined as the product of largest deflection and shortest distention