Improvement of the Accuracy of Spatial Representation of Invasive Exploratory Electrodes in Focal Epilepsy (ELEC3D)

Fondation Ophtalmologique Adolphe de Rothschild

Status

Completed

Conditions

Focal Epilepsy

Study type

Observational

Funder types

NETWORK

Identifiers

NCT02898935

MCX_2015_32

Details and patient eligibility

About

Reconstruction software allows visualization of cortical structure in 3 dimensions, showing on a single picture the position of all the electrodes. The EEG signal of each recording plot of the electrode is analyzed and compared with the underlying brain structure reconstructed by the software. It is therefore possible to visualize 1) ictogenic and epileptogenic areas using neurophysiological stereoelectroencephalography (SEEG) data and 2) adjacent functional cortical areas with functional imaging and SEEG. Software makes it possible to determine the links between these areas. This study aims to show that using these software is an asset in surgical decision and in the choice of surgical strategy.

Each patient has presurgical evaluation (usual care), including morphologic and (if necessary) functional MRI, EEG and SEEG. In this study, software will be used to analyze the processed data (FSL software, FMRIB laboratory, Oxford University and BrainVisa/Anatomist. The surgical decision will be taken according to the usual staff procedures, based on the usual examination results. After the decision making process, the staff will be asked to reconsider the surgical decision, according to the analysis provided by the software. The discrepancies between the decisions will be recorded.

Enrollment

30 patients

Sex

All

Ages

18 months to 17 years old

Volunteers

No Healthy Volunteers

Inclusion criteria