Table 2.
The performance of 3-month imaging parameters in predicting the 7-month mRS.
| Parameters at V3 (3 months) | Youden index | Cutoff value | AUC | 95% CIs | Sensitivity (%) | Specificity (%) | Value of p |
|---|---|---|---|---|---|---|---|
| PRMrCBV- | 0.88 | 7.00 | 0.951 | 0.881–0.990 | 88 | 100 | 0.002** |
| PRMrCBV+ | 0.52 | 4.00 | 0.864 | 0.853–0.944 | 83 | 69 | 0.037* |
| PRMTmax- | 0.75 | 3.10 | 0.912 | 0.790–0.982 | 92 | 83 | 0.013* |
| ILV | 0.22 | 52.24 | 0.681 | 0.574–0.770 | 55 | 67 | 0.190 |
| Mean rCBV | 0.18 | 6.20 | 0.650 | 0.581–0.690 | 64 | 54 | 0.262 |
| Mean Tmax | 0.16 | 4.70 | 0.634 | 0.574–0.670 | 54 | 62 | 0.377 |
PRM indicates parametric response mapping; rCBV, relative cerebral blood volume; Tmax, time-to-maximum; ILV, ischemic lesion volume; AUC, area under the curve; CI, confidence interval; mRS, modified Rankin Scale. *p < 0.05; **p < 0.01: A difference in comparison with the performance with AUC = 0.5.