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Cohen’s kappa coefficient for interobserver agreement of positivity for sacroiliitis for both image sets and intersequence agreement of positivity for sacroiliitis for both observers
| κ | |
|---|---|
| STIR & T2FS | 0.978 |
| T1CE | 0.956 |
| Observer 1 | 0.891 |
| Observer 2 | 0.870 |
STIR, short tau inversion recovery; T1CE, contrast-enhanced fat-saturated T1 weighted imaging; T2FS, fat-saturated T2 weighted imaging.
