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Proceedings Paper

Fusion of anatomic and electrophysiologic information for image-guided neurosurgery
Author(s): Russell K. Gore; Robert L. Galloway Jr.; Robert J. Maciunas; Benoit M. Dawant
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Paper 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.

Paper Details

Date Published: 7 May 1997
PDF: 9 pages
Proc. SPIE 3031, Medical Imaging 1997: Image Display, (7 May 1997); doi: 10.1117/12.273893
Show Author Affiliations
Russell K. Gore, Vanderbilt Univ. (United States)
Robert L. Galloway Jr., Vanderbilt Univ. and Vanderbilt Univ. Medical Ctr. (United States)
Robert J. Maciunas, Vanderbilt Univ. Medical Ctr. (United States)
Benoit M. Dawant, Vanderbilt Univ. (United States)

Published in SPIE Proceedings Vol. 3031:
Medical Imaging 1997: Image Display
Yongmin Kim, Editor(s)

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