Table 2 Percentage of lateralization and localization of epileptogenic focus according to different assessment modalities, and percent of concordance with brain imaging
| Â | Semiology | Video EEG | Brain imaging | ||
|---|---|---|---|---|---|
Ictal (n = 44) | Interictal (n = 118) | ||||
Lateralization | Right | 46 (39%) | 14 (36.4%) | 23 (19.5%) | 43 (36.4%) |
Left | 49 (41.5%) | 8 (18.2%) | 26 (22%) | 45 (38.1%) | |
Multifocal or bilateral | – | 6 (13.6%) | 18(15.3%) | 4 (3.4%) | |
Undetermined | 23 (19.5%) | 16 (36.4%) | 51(43.2%) | 26 (22%)1 | |
Lateralization | Temporal | 68 (57.6%) | 15 (34.4%) | 47 (39.8%) | 53 (44.9%) |
Frontal | 29 (24.6%) | 11 (9.3%) | 11 (9.3%) | 15 (12.7%) | |
Parieto-occipital | 12 (10.2%) | 2 (1.7%) | 2 (1.7%) | 11 (9.3%) | |
Insula | 3 (2.5%) | – | – | 4 (3.4%) | |
Multifocal or hemispheric | – | 5 (9.1%) | 7 (5.9%) | 7 (5.9%) | |
others | – | – | – | 5 (4.2%)2 | |
Undetermined | 6 (5%) | 16 (36.4%) | 51 (43.2%) | 23 (19.5%)3 | |