Journal article

A computer-generated stereotactic "virtual subdural grid" to guide resective epilepsy surgery

K Morris, TJ O'Brien, MJ Cook, M Murphy, SC Bowden

American Journal of Neuroradiology | AMER SOC NEURORADIOLOGY | Published : 2004

Abstract

BACKGROUND AND PURPOSE: In selected patients undergoing epilepsy surgery, subdural electrode grids play an important role in localizing the epileptogenic zone and identifying eloquent cortex. Determining the relationship of the electrodes to underlying brain architecture traditionally has been difficult. This report describes and validates the use of an original computer-aided method that displays a representation of the electrode positions, based on postimplantation CT or MR findings, coregistered with a 3D-rendered image of the brain, on an image-guided surgery system. METHODS: Seventeen patients underwent the procedure with visual verification of the actual and virtual grids undertaken du..

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