Table 5.
Intra- and inter-observer reproducibility for fast global longitudinal strain and strain rate measurements at different field strengths
| Variables | Intra-observer CV, % | Inter-observer CV, % | ||
|---|---|---|---|---|
| 1.5 T (n = 10) | 3 T (n = 10) | 1.5 T (n = 10) | 3 T (n = 10) | |
| RV fast GLS, % | 3.1 | 2.9 | 4.2 | 3.7 |
| RV fast GLSRs, 1/s | 6.6 | 6.1 | 7.2 | 7.3 |
| RV fast GLSRe, 1/s | 6.5 | 6.8 | 8.6 | 8.4 |
| RV fast GLSRa, 1/s | 7.9 | 7.2 | 9.5 | 10.1 |
CV coefficient of variation, GLS global longitudinal strain, GLSRs peak global longitudinal strain rate during systole, GLSRe peak global longitudinal strain rate during early diastole, GLSRa peak global longitudinal strain rate during late diastole, RV right ventricular