Table 2.
Sensitivity, specificity, PPV, NPV, and accuracy of each method with SE versus self-limiting seizure.
| Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) | |
|---|---|---|---|---|---|
| Differentiating SE (n = 51) from self-limiting seizure (n = 46) | |||||
| ASL, any change | 90.2 | 58.7 | 70.8 | 84.4 | 75.3 |
| ASL, only hyperperfusion | 79.2 | 79.5 | 82.4 | 76.1 | 79.4 |
| Thalamic ASL, any change | 83.3 | 61.2 | 49.0 | 89.1 | 68.0 |
| Thalamic ASL, ipsilateral | 87.0 | 58.1 | 39.2 | 93.5 | 64.9 |
| DSC | 39.2 | 82.6 | 71.4 | 55.1 | 59.8 |
| FLAIR | 52.9 | 91.3 | 87.1 | 63.6 | 71.1 |
| DWI | 35.3 | 97.8 | 94.7 | 57.7 | 64.9 |
PPV positive predictive value, NPV negative predictive value, SE status epilepticus, ASL arterial spin labeling, DSC dynamic susceptibility contrast, FLAIR fluid attenuated inversion recovery, DWI diffusion weighted imaging.