Table 4.
Intra- and inter-observer reproducibility of regional (segmental) strain per software method
| Intra-Observer ICC | Inter-Observer ICC | |
|---|---|---|
| Subtricuspid Region | ||
| MEDIS | 0.928 | 0.896 |
| TOMTEC | 0.816 | 0.538 |
| MTT | 0.696 | 0.519 |
| CIRCLE | 0.980 | 0.719 |
| Anterior Wall Region | ||
| MEDIS | 0.954 | 0.792 |
| TOMTEC | 0.699 | 0.864 |
| MTT | 0.806 | 0.677 |
| CIRCLE | 0.969 | 0.783 |
| Apical Region | ||
| MEDIS | 0.909 | 0.807 |
| TOMTEC | 0.790 | 0.861 |
| MTT | 0.787 | 0.472 |
| CIRCLE | 0.944 | 0.577 |
An ICC ≥0.75 was considered excellent, an ICC between <0.75 and ≥0.40 moderate, and an ICC <0.40 poor. Abbreviations: MTT = Multimodality Tissue Tracking; ICC = Intraclass Correlation Coefficient