Variability of intraoperative electrocortical stimulation mapping parameters across and within individuals.

TitleVariability of intraoperative electrocortical stimulation mapping parameters across and within individuals.
Publication TypeJournal Article
Year of Publication2004
AuthorsPouratian, N, Cannestra AF, Bookheimer SY, Martin NA, Toga AW
JournalJournal of neurosurgery
Volume101
Issue3
Pagination458-66
Date Published2004 Sep
ISSN0022-3085
KeywordsAnomia, Brain Mapping, Brain Neoplasms, cerebral cortex, Comprehension, Electric Stimulation, Electroencephalography, Evoked Potentials, Female, Hemangioma, Cavernous, Central Nervous System, Humans, Intracranial Arteriovenous Malformations, Intraoperative Complications, Magnetic Resonance Imaging, Male, Monitoring, Intraoperative, Pattern Recognition, Visual, Reading, Reference Values, Sensory Thresholds, Speech Perception, Verbal Behavior
Abstract

Electrocortical stimulation mapping is regarded as the gold standard of intraoperative mapping for predicting functional outcomes. Nevertheless, methodologies across institutions are inconsistent. Although many vary and maximize stimulation currents at each cortical site, some use a single current level to map the entire exposed cortex. The former comes at the cost of possibly inducing additional afterdischarge activity. The authors retrospectively reviewed their eperience with intraoperative electrocortical stimulation mapping to characterize variability of both mapping and afterdischarge thresholds.

Alternate JournalJ. Neurosurg.