Table 4.
Inter-observer variability assessment for scar detection, scar transmurality and overall quality score
| Inter-observer variability | |||||
|---|---|---|---|---|---|
| 2D | 3D | ||||
| Patient no | Cohen kappa | P-value | Cohen kappa | P-value | |
| Scar detection | 1 | 0.811 | 0.99 | 0.811 | 0.99 |
| 2 | 1 | – | 1 | – | |
| 3 | 1 | – | 1 | – | |
| 4 | 1 | – | 1 | – | |
| 5 | 0.598 | 0.99 | 0.598 | 0.99 | |
| 6 | 0.638 | 0.99 | 0.638 | 0.99 | |
| 7 | 0.541 | 0.95 | 0.541 | 0.95 | |
| 8 | 0.638 | 0.95 | 0.638 | 0.95 | |
| 9 | 1 | – | 1 | – | |
| 10 | 1 | – | 1 | – | |
| All patients | 0.811 | 0.99 | 0.811 | 0.99 | |
| Scar transmurality | 1 | 0.667 | 0.99 | 0.667 | 0.99 |
| 4 | 0.622 | – | 0.805 | – | |
| 6 | 0.497 | 0.99 | 0.485 | 0.99 | |
| 7 | 0.512 | 0.99 | 0.439 | 0.99 | |
| All patients with scar | 0.589 | 0.99 | 0.544 | 0.99 | |
| Quality score | All patients | 0.615 | 0.95 | 0.5 | 0.95 |
The inter-observer variability analysis was performed for both 2D and 3D grey-blood late gadolinium enhancement (LGE) datasets. Inter-observer variability for scar detection was computed for each patient considering each LV segment in the analysis, ad for all patients considering each segment of each patient in the analysis. Inter-observer variability of scar transmurality was performed only for patients showing a myocardial scar