Table 3.
Bland-Altman analysis and ICC of pairwise comparison to assess intraobserver agreement for LV volumes, mass, ejection fraction and strain parameters (analysis of entire study population, n = 30).
| Parameter | First measurement |
Second measurement |
Mean difference |
Limits of agreement |
ICC (95% CI) |
|---|---|---|---|---|---|
| LVEDVi (ml/m2) | 97.84 ± 29.26 | 99.36 ± 30.31 | −1.52 ± 9.42 | −19.98 to 16.95 | 0.98 (0.95 to 0.99) |
| LVESVi (ml/m2) | 56.05 ± 34.16 | 60.38 ± 35.90 | −4.33 ± 8.13 | −20.27 to 11.60 | 0.98 (0.95 to 0.99) |
| LVMi (g/m2) | 70.19 ± 20.20 | 64.45 ± 16.45 | 5.75 ± 9.34 | −12.57 to 24.06 | 0.91 (0.74 to 0.96) |
| LVEF (%) | 46.58 ± 17.02 | 43.10 ± 17.01 | 3.48 ± 4.76 | −5.85 to 12.81 | 0.97 (0.88 to 0.99) |
| GLS (%) | −16.74 ± 5.03 | −16.60 ± 4.87 | −0.14 ± 9.11 | −1.93 to 1.65 | 0.99 (0.98 to 1.00) |
| GCS (%) | −16.61 ± 4.47 | −16.28 ± 4.58 | −0.33 ± 0.95 | −2.19 to 1.54 | 0.99 (0.97 to 0.99) |
Results are reported as mean ± standard deviation. Abbreviations as in Table 1.