Detailed results for agreement study. Agreement (95% CI) (Cohen’s unweighted kappa (κ)) and proportion of similar answers for initial CT-ASPECTS/DWI-ASPECTS, HT diagnosis, ECASS classification, and TICI score. Weighted kappa (κw) values and proportions of answers with ≤1 point difference were also calculated for ASPECTS and DWI-ASPECTS
| Agreement value | Similar answers, n (%) | |
| CT-ASPECTS (n=80) | κ=0.064 (−0.062–0.190) κw=0.168 (−0.009–0.345) | 22 (27.5) (≤1 point) 43 (53.7) |
| Dichotomised CT-ASPECTS (0–7 vs 8–10) (n=80) | κ=0.272 (0.021–0.523) | 57 (71.2) |
| DWI-ASPECTS (n=259) | κ=0.291 (0.222–0.361) κw=0.607 (0.555–0.659) | 102 (39.4) (≤1 point) 203 (78.4) |
| Dichotomised DWI-ASPECTS (0–7 vs 8–10) (n=259) | κ=0.666 (0.571–0.761) | 219 (84.5) |
| HT diagnosis (yes/no) | ||
| CT (n = 198) | κ=0.564 (0.441–0.686) | 159 (80.3) |
| MRI (n=134) | κ=0.835 (0.742–0.928) | 122 (91.0) |
| ECASS classification | ||
| CT (n = 198) | κ=0.338 (0.213– 0.463) | 129 (65.1) |
| MRI (n = 134) | κ=0.513 (0.399–0.627) | 88 (65.7) |
| Dichotomised ECASS classification (0/HI1/HI2 vs PH1/PH2) | ||
| CT (n = 198) | κ=0.326 (0.090–0.563) | 171 (86.4) |
| MRI (n = 134) | κ=0.604 (0.434–0.774) | 116 (86.6) |
| TICI score | ||
| Intermediate (n = 347) | κ=0.589 (0.522–0.655) | 244 (70.3) |
| Final (n=350) | κ=0.592 (0.519–0.665) | 261 (74.6) |
| Dichotomised TICI score (0/1/2a vs 2b/3) | ||
| Intermediate (n=347) | κ=0.751 (0.675–0.823) | 310 (89.3) |
| Final (n=350) | κ=0.659 (0.540–0.778) | 321 (91.7) |
ASPECTS, Alberta Stroke Program Early CT Score; DWI, diffusion-weighted imaging; ECASS, European Collaborative Acute Stroke Study; HT, hemorrhagic transformation; TICI, Thrombolysis In Cerebral Infarction.