Table 8 Intra- and inter-observer reproducibility of LV and RV global strain parameters
Variables | Variability | Mean absolute bias | Limits of agreement | ICC (95% CI) |
|---|---|---|---|---|
LV GRS (%) | Intraobserver | 1.2 ± 1.5 | − 2.6 to 4.7 | 0.97 (0.94, 0.98) |
Interobserver | 1.6 ± 1.7 | − 2.0 to 5.8 | 0.95 (0.92, 0.97) | |
LV GCS (%) | Intraobserver | − 0.4 ± 0.5 | − 1.5 to 0.8 | 0.97 (0.95, 0.98) |
Interobserver | − 0.5 ± 0.4 | − 1.8 to 0.7 | 0.96 (0.93, 0.98) | |
LV GLS (%) | Intraobserver | 0.1 ± 0.9 | − 2.7 to 3.4 | 0.91 (0.85, 0.94) |
Interobserver | − 0.3 ± 1.0 | − 3.3 to 2.3 | 0.89 (0.83, 0.94) | |
RV GRS (%) | Intraobserver | 0.4 ± 1.9 | − 5.6 to 8.0 | 0.96 (0.94, 0.98) |
Interobserver | 1.1 ± 2.3 | − 6.6 to 8.1 | 0.95 (0.92, 0.97) | |
RV GCS (%) | Intraobserver | − 0.1 ± 1.2 | − 3.4 to 3.5 | 0.94 (0.90, 0.96) |
Interobserver | − 0.6 ± 1.4 | − 4.6 to 3.6 | 0.93 (0.88, 0.95) | |
RV GLS (%) | Intraobserver | 0.3 ± 2.3 | − 8.5 to 4.6 | 0.88 (0.81, 0.93) |
Interobserver | − 0.7 ± 2.7 | − 5.8 to 6.7 | 0.86 (0.77, 0.91) |