Table 3.
Outcome of different imaging techniques in terms of localization of the presumed epileptogenic zone (PEZ)
| Neuroimaging | Positive outcome (%) | Negative outcome (%) | ||||||
|---|---|---|---|---|---|---|---|---|
| Localizing | Highly localizing | Normal | Lateralizing | Nonconcordant | Nonlateralizing | Falsely lateralizing | Falsely localizing | |
| SISCOM (n = 51) | 11 (21.6%) | 15 (29.4%) | 2 (3.9%) | 9 (17.6%) | 6 (11.8%) | 6 (11.8%) | 1 (2%) | 1 (2%) |
| MRI (n = 44) | 6 (13.6%) | 16 (36.4%) | 13 (29.5%) | 4 (9.0%) | 3 (6.8%) | 2 (4.5%) | 0 | 0 |
| ictal SPECT (n = 58) | 11 (19.0%) | 5 (8.6%) | 3 (5.2%) | 17 (29.3%) | 12 (20.7%) | 4 (7.0%) | 2 (3.4%) | 4 (7.0%) |
| PET (n = 20) | 8 (40.0%) | 2 (10.0%) | 2 (10.0%) | 4 (20.0%) | 2 (10.0%) | 2 (10.0%) | 0 | 0 |