The sensitivity, specificity, and accuracy between SWI-DWI and PWI-DWI mismatchesa
Sensitivity | Specificity | Accuracy | AUC | |
---|---|---|---|---|
SWI-DWI mismatch | 46.7 | 55.6 | 63.0% | 0.511 |
Standard PWI-DWI mismatch | 63.3 | 8.3 | 37.0% | 0.338 |
Optimal PWI-DWI mismatch | 60.0 | 25.0 | 44.4% | 0.425 |
Target PWI-DWI mismatch | 63.3 | 38.9 | 48.1% | 0.463 |
Note:—AUC indicates area under the curve.
↵a Accuracy is the proportion of true results (both true-positives and true-negatives) in the population. Standard PWI-DWI mismatch was defined as PWI/DWI ≥ 1.2, PWI-DWI ≥ 10 mL. Optimal PWI-DWI mismatch was defined as PWI/DWI ≥ 2.6 and PWI-DWI ≥ 10 mL. Target PWI-DWI mismatch was defined as PWI/DWI ≥ 1.2, PWI-DWI ≥10 mL, PWI (Tmax ≥ 8 seconds) ≤ 100 mL, and DWI ≤ 100 mL.