Video-EEG in functional MRI | [Video-EEG-fMRI]

Combined EEG-fMRI is a methodology which enables to identify regional blood flow variations (BOLD contrast) associated with specific EEG events. We aimed to develop a technique allowing to acquire video images during EEG-fMRI recordings. We used a magnet compatible EEG recordings system (Micromed, S.P.A, Italy) designed to minimize interferences due to magnetic fields. In order to record video images we used a shielded video-camera with a flexible arm secured to the Radio Frequency coil. Video signals were synchronized with neurophysiological data in order to achieve a real video-EEG recording. Although some decay of the EEG signal due to magnetic field artefacts,we obtained satisfactory results allowing a real video-EEG recording with video monitoring of the patient's face. Integration of EEG-fMRI data with video images permit to widen our knowledge of clinical events which may appear during the EEG recording.