Fusion of anatomic and electrophysiologic information for image-guided neurosurgery

Russell K. Gore; Robert L. Galloway Jr.; Robert J. Maciunas; Benoit M. Dawant

doi:10.1117/12.273893

7 May 1997 Fusion of anatomic and electrophysiologic information for image-guided neurosurgery

Russell K. Gore, Robert L. Galloway Jr., Robert J. Maciunas, Benoit M. Dawant

Proceedings Volume 3031, Medical Imaging 1997: Image Display; (1997) https://doi.org/10.1117/12.273893
Event: Medical Imaging 1997, 1997, Newport Beach, CA, United States

Abstract

Cortical mapping is the process by which functional areas are identified on the cortex during neurosurgery. Normally, this can be accomplished on awakened patients by stimulating cortical areas and observing the patient's reaction. In cases involving displaced motor areas or patients not readily responding to stimulation, stimulating electrodes are replaced by recording electrode grids overlying the sensorimotor cortex. The electrode grid records evoked potentials generated in response to stimuli applied to peripheral nerves. Once the sensorimotor cortex is identified, the electrode grid is removed and functional information from the mapping phase is effectively lost. In this paper, we present a system designed to permit the visualization of the electrode grid on a volume-rendered image of the brain, to interactively label each electrode as 'sensory' or 'motor', and to maintain spatial correlation between the rendered images and physical space following cortical mapping. This system fuses anatomic and electrophysiologic information so that once the electrode grid is removed and tumor resection begins, functional information is not lost.

Citation Download Citation

Russell K. Gore, Robert L. Galloway Jr., Robert J. Maciunas, and Benoit M. Dawant "Fusion of anatomic and electrophysiologic information for image-guided neurosurgery", Proc. SPIE 3031, Medical Imaging 1997: Image Display, (7 May 1997); https://doi.org/10.1117/12.273893

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