A new device for cortical stimulation mapping of surgically unexposed cortex. Technical note

Intraoperative functional mapping is an integral facet of many supratentorial procedures involving cortical resection. A new device is described that can be used in conjunction with a standard cortical stimulator and strip electrodes to stimulate intraoperative regions of unexposed cerebral cortex. This permits the use of a smaller craniotomy, while providing the ability for functional mapping of large areas of surface cortex.