An example of how we capture brain wave information from EEG and MEG sensors and the individual head models we use to help determine sources of seizures. Details here from our paper
We currently use the 306 sensor Elekta TRIUX MEG scanner. Click here for more information from Elekta
Example of our new customised MEG-compatible High Density EEG cap (developed with Compumedics Neuroscan) we use for our recordings. This cap provides us with 134 EEG electrode sensors to better capture abnormalities from the brain, while minimising noise to the MEG sensors.
Non-invasive mapping of abnormal epileptic discharges in areas close to areas of “eloquent” cortex. Here the abnormality was localised within sensory areas of the right hand, and later verified with an intracranial grid at time of epilepsy surgery.
Same patient as shown left but demonstrating differences between sensitivity of localised activity using MEG (brain figure below) within depth of the cortex walls compared to a broader activated area when modelling the same activity from EEG.
How we explore the earliest features of your abnormal discharges to better understand where seizures arise from with millisecond precision. The earliest change detected here on the first column of brains shows the sensitivity of MEG over EEG in localising the seizure onset zone and enabled this patient to progress toward experiencing signfiicant improvements in their seizure control following resection. Importantly this patient had previously had be considered not a suitable candidate for surgery.