Table 2. Kappa test results.
| Observed content | Kappa value | P value |
|---|---|---|
| MRI signa | 0.882 | 0.000 |
| T1WI signal | 1.000 | 0.000 |
| T2WI signal | 0.889 | 0.000 |
| DWI signal | 1.000 | 0.000 |
| Arterial stage presentation | 1.000 | 0.000 |
| Marginal enhancement features of artery stage | 0.957 | 0.000 |
| Central enhancement features of artery stage | 0.937 | 0.000 |
| Marginal enhancement variation tendency | 0.891 | 0.000 |
| Central enhancement variation tendency | 0.872 | 0.000 |
| Abnormal perfusion | 1.000 | 0.000 |
| Intratumoral vascular transverse sign | 1.000 | 0.000 |
MRI, magnetic resonance imaging; TIWI, T1-weighted imaging; T2WI, T2-weighted imaging; DWI, diffusion weighted imaging.