Table 3 Agreement (κ), sensitivity, specificity, and accuracy of target mismatch profile identified by down-sampled CT perfusion and multiphase CT angiography-perfusion versus standard CT perfusion.

From: Multiphase CT angiography perfusion maps for predicting target mismatch and ischemic lesion volumes

 

κ (95% CI)

Sensitivity (%)

Specificity (%)

Accuracy (%)

Down-sampled CT perfusion

0.75 (0.56–0.94)

42/46 (91)

13/15 (87)

55/61 (90)

Multiphase CT angiography-perfusion

0.48 (0.22–0.74)

42/46 (91)

8/15 (53)

50/61 (82)

  1. κ is the Cohen’s kappa coefficient; CI indicates confidence interval.