κ Scores for all pair-wise combinations of observers for all vessels combined
| Pair-Wise κ Scores | |||||
|---|---|---|---|---|---|
| Observer 1 | Observer 2 | Observer 3 | Observer 4 | Observer 5 | |
| Vascular Signal: Precontrast Assessment | |||||
| Observer 1 | 1.00 | 0.44 | 0.36 | 0.46 | 0.33 |
| Observer 2 | 1.00 | 0.42 | 0.61 | 0.49 | |
| Observer 3 | 1.00 | 0.54 | 0.44 | ||
| Observer 4 | 1.00 | 0.57 | |||
| Observer 5 | 1.00 | ||||
| Vascular Signal: Postcontrast Assessment | |||||
| Observer 1 | 1.00 | 0.39 | 0.44 | 0.48 | 0.44 |
| Observer 2 | 1.00 | 0.30 | 0.35 | 0.41 | |
| Observer 3 | 1.00 | 0.41 | 0.39 | ||
| Observer 4 | 1.00 | 0.54 | |||
| Observer 5 | 1.00 | ||||
| Impact of Contrast Enhancement | |||||
| Observer 1 | 1.00 | 0.03 | 0.04 | 0.34 | 0.05 |
| Observer 2 | 1.00 | 0.03 | 0.00 | 0.21 | |
| Observer 3 | 1.00 | 0.00 | 0.01 | ||
| Observer 4 | 1.00 | 0.14 | |||
| Observer 5 | 1.00 | ||||
Note.—Overall agreement for vascular signal grade at precontrast assessment was 0.41, for vascular signal grade at postcontrast assessment was 0.48, and for impact of contrast enhancement grades was 0.08.