Diagnostic comparison of FDG versus FDG and ASLa
| FDG | FDG and ASL | Nam Test Statistic | P Value | |
|---|---|---|---|---|
| All patients | ||||
| Sensitivity | 0.64 (0.47–0.78) | 0.52 (0.35–0.68) | 2.00 | .02 |
| Specificity | 0.50 (0.26–0.75) | 0.75 (0.47–0.91) | –1.73 | .04 |
| Accuracy | 0.51 (0.36–0.66) | 0.53 (0.38–0.68) | ||
| Positive predictive value | 0.59 (0.39–0.76) | 0.75 (0.51–0.91) | ||
| Negative predictive value | 0.38 (0.15–0.65) | 0.36 (0.18–0.57) | ||
| Temporal epilepsy | ||||
| Sensitivity | 0.83 (0.55–0.95) | 0.75 (0.47–0.91) | 1.0 | .16 |
| Extratemporal epilepsy | ||||
| Sensitivity | 0.52 (0.32–0.72) | 0.38 (0.21–0.59) | 1.73 | .04 |
↵a Data are reported in the format of proportions (95% confidence intervals). Sensitivity and specificity were calculated separately from the subsets of patients with positive findings on EEG findings and negative findings on EEG, respectively. Accuracy, positive predictive value, and negative predictive value were calculated with the entire patient sample (ie, patients with both positive and negative EEG findings). The sensitivities for temporal and extratemporal epilepsy were calculated in those patients with positive EEG foci in each of these regions, respectively.