Table 5.
Intra‐and interobserver variabilities of LV myocardial strain
| Intraobserver | Interobserver | |||
|---|---|---|---|---|
| ICC | 95%CI | ICC | 95%CI | |
| LV PS | ||||
| Radial | 0.925 | 0.862–0.959 | 0.922 | 0.857–0.958 |
| Circumferential | 0.962 | 0.929–0.980 | 0.956 | 0.918–0.976 |
| Longitudinal | 0.974 | 0.952–0.986 | 0.967 | 0.939–0.982 |
| LV PSSR | ||||
| Radial | 0.945 | 0.899–0.971 | 0.915 | 0.845–0.954 |
| Circumferential | 0.927 | 0.867–0.961 | 0.934 | 0.878–0.964 |
| Longitudinal | 0.967 | 0.938–0.982 | 0.969 | 0.943–0.984 |
| LV PDSR | ||||
| Radial | 0.957 | 0.920–0.977 | 0.936 | 0.883–0.966 |
| Circumferential | 0.935 | 0.880–0.965 | 0.931 | 0.874–0.963 |
| Longitudinal | 0.977 | 0.956–0.988 | 0.964 | 0.933–0.981 |
LV left ventricular; ICC intraclass correlation coefficient, CI confidence interval, PS peak strain, PSSR peak systolic strain rate, PDSR peak diastolic strain rate