Agreement between DWI (qualitative and quantitative), T2 SI, NI-RADS, and NI-RADS combined with DWI and T2 SI for the primary targets and the standard of reference
| Standard of Reference | Agreement | |||||
|---|---|---|---|---|---|---|
| Negative n (%) | Positive n (%) | Kappa | 95% CI | P Value | ||
| DWI | Restricted | 4 (9.3) | 24 (92.31) | 0.818 | 0.68–0.96 | <.001 |
| Facilitated | 39 (90.7) | 2 (7.69) | ||||
| T2 SI | Intermediate | 5 (11.63) | 24 (92.3) | 0.789 | 0.64–0.94 | <.001 |
| No abnormality; low or high SI | 38 (88.37) | 2 (7.69) | ||||
| NI-RADS combined with T2 and DWI | Category 3 | 3 (6.98) | 23 (88.46) | 0.815 | 0.67–0.96 | <.001 |
| Categories 1 and 2 | 40 (93.02) | 3 (11.54) | ||||
| NI-RADS | Category 3 | 8 (18.6) | 22 (84.62) | 0.641 | 9.46–0.82 | <.001 |
| Categories 1 and 2 | 35 (81.4) | 4 (15.38) | ||||