Table 4.
Variability of echocardiographic variables (n = 40)
| Interobserver variability | Intraobserver variability | |||||
|---|---|---|---|---|---|---|
| Bias (limit of agreement) | ICC (95% CI) | CoV (%) | Bias (limit of agreement) | ICC (95% CI) | CoV (%) | |
| PLAXFW | 0.25 (-1.21; 1.71) | 0.98 (0.97–0.98) | 6.1 | 0.05 (-0.83; 0.93) | 0.99 (0.98–0.99) | 2.5 |
| PLAXB | 1.02 (-0.33; 2.37) | 0.97 (0.95–0.99) | 3.5 | 0.13 (-0.98; 1.23) | 0.98 (0.96–0.99) | 1.7 |
| PSAXMV | 0.49 (-1.11; 2.09) | 0.98 (0.97–0.99) | 6.8 | 0.22(-0.94; 1.38) | 0.99 (0.98–0.99) | 4.4 |
| PSAXB | 0.58 (-0.82; 1.97) | 0.97 (0.95–0.99) | 5.3 | 0.13 (-0.89; 1.13) | 0.99 (0.97–0.99) | 2.9 |
CI denotes confidence interval; CoV, coefficient of variation; ICC, intraclass correlation coefficient; PLAXB, parasternal long-axis basal right ventricular; PLAXFW, parasternal long-axis right-ventricular free wall; PSAXB, parasternal short-axis basal; PSAXMV, parasternal short-axis mid-ventricular