Table 2.
Inter-study reproducibility. Inter-study reproducibility for dyssynchrony indexes as determined by Bland–Altman analysis (mean difference ± 2SD), coefficients of variation (CoV) and intra-class correlation coefficients (ICC).
| Mean difference ± 2 SD | CoV (%) | ICC (95% CI) | |
|---|---|---|---|
| Circ. Strain SDI (%) | 0.8 ± 2.4 | 37.5 | 0.67 (0.10–0.88) |
| Area SDI (%) | 0.3 ± 0.9 | 24.9 | 0.76 (0.35–0.92) |
| CURE | 0.03 ± 0.06 | 6.5 | 0.79 (0.41–0.93) |
| RURE | 0.03 ± 0.07 | 8.5 | 0.80 (0.43–0.93) |
| CURE:RUREAVG | 0.03 ± 0.05 | 6.4 | 0.80 (0.40–0.93) |
| 4D Volume SDI (%) | 0.1 ± 0.4 | 12.9 | 0.85 (0.55–0.95) |
SD: standard deviation; CoV: coefficient of variation; ICC: intraclass correlation coefficient; CI: confidence interval.