O202 Combining the strengths of passive functional mapping and electrical cortical stimulation

The identification of eloquent cortex, surrounding the seizure onset zone, is important for predictable surgical outcome in epilepsy patients. The symptoms during electrical cortical stimulation (ECS) lead to a functional map that includes motor, sensory, and other functions. In this study we test whether a prevenient high-gamma mapping (HGM) with electrocorticography can guide ECS mapping and therefore optimizes it in terms of time and stimulation related risks.

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