Table 1.
Non-invasive pre-surgical evaluations for epilepsy
| Evaluations | Cortical zones of epileptic abnormalitya |
| Detailed clinical history* | — |
| Video-EEG monitoring* | Seizure onset zone, Symptomatogenic zone, Irritative zone |
| MRI* | Epileptongenic lesion |
| Neuropsychological evaluation* | Functional deficit zone |
| FDG-PET | Epileptogenic lesionb , Functional deficit zone |
| Magnetoencephalography (MEG) | Irritative zone |
| Iomazenil-SPECT | Epileptogenic lesionb , Functional deficit zone |
| Ictal ECD-SPECT | Seizure onset zone |
| Functional MRI / Functional MEG | Eloquent cortex |
*
Essential evaluations.
a
Rosenow F, Lüders H. Presurgical evaluation of epilepsy. Brain 124:1683–700, 2001.
b
MRI-negative epileptogenic lesion could be detected as functionally impaired region.