Table 2.
Inter-reader agreement on vessel wall MRI features of aneurysm.
| Reader a | Agreement | ||||
| Variable | HW | JS | κ b | (95% CI) | |
| Any enhancement | 17 (26.2) | 23 (35.4) | 0.64 | (0.41, 0.83) | |
| No. of quadrants with enhancement | 0 | 48 (73.8) | 42 (64.6) | 0.64 | (0.41, 0.79) |
| 1 | 3 (4.6) | 5 (7.7) | |||
| 2 | 5 (7.7) | 5 (7.7) | |||
| 3 | 2 (3.1) | 3 (4.6) | |||
| 4 | 7 (10.8) | 10 (15.4) | |||
| Maximum intensity of enhancement | None | 48 (73.8) | 42 (64.6) | 0.60 | (0.37, 0.78) |
| <infundibulum | 10 (15.4) | 10 (15.4) | |||
| ≥infundibulum | 7 (10.8) | 13 (20.0) | |||
| Any appreciable wall thinning | 4 (6.2) | 3 (4.6) | 0.25 | (−0.07, 0.79) | |
CI, confidence interval.
a
Values are no. (%);
b
Unweighted Cohen’s κ for binary variables and linearly weighted Cohen’s κ for ordinal variables.