Table 3:

The sensitivity, specificity, and accuracy between SWI-DWI and PWI-DWI mismatchesa

SensitivitySpecificityAccuracyAUC
SWI-DWI mismatch46.755.663.0%0.511
Standard PWI-DWI mismatch63.38.337.0%0.338
Optimal PWI-DWI mismatch60.025.044.4%0.425
Target PWI-DWI mismatch63.338.948.1%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.