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1
Intraoperative mapping of expressive language cortex using passive real-time electrocorticography
Abstract: In this case report, we investigated the utility and practicality of passive intraoperative functional mapping of expressive language cortex using high-resolution electrocorticography (ECoG). The patient presented here experienced new-onset seizures caused by a medium-grade tumor in very close proximity to expressive language regions. In preparation of tumor resection, the patient underwent multiple functional language mapping procedures. We examined the relationship of results obtained with intraoperative high-resolution ECoG, extraoperative ECoG utilizing a conventional subdural grid, extraoperative electrical cortical stimulation (ECS) mapping, and functional magnetic resonance imaging (fMRI). Our results demonstrate that intraoperative mapping using high-resolution ECoG is feasible and, within minutes, produces results that are qualitatively concordant to those achieved by extraoperative mapping modalities. They also suggest that functional language mapping of expressive language areas with ECoG may prove useful in many intraoperative conditions given its time efficiency and safety. Finally, they demonstrate that integration of results from multiple functional mapping techniques, both intraoperative and extraoperative, may serve to improve the confidence in or precision of functional localization when pathology encroaches upon eloquent language cortex.
Keyword: Case Report
URL: http://www.ncbi.nlm.nih.gov/pubmed/27408802
https://doi.org/10.1016/j.ebcr.2016.03.003
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4922734/
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2
Spatio-Temporal Progression of Cortical Activity Related to Continuous Overt and Covert Speech Production in a Reading Task
Brumberg, Jonathan S.; Krusienski, Dean J.; Chakrabarti, Shreya. - : Public Library of Science, 2016
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3
Spatio-Temporal Progression of Cortical Activity Related to Continuous Overt and Covert Speech Production in a Reading Task
Gunduz, Aysegul; Schalk, Gerwin; Ritaccio, Anthony L.. - : Public Library of Science, 2016
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4
Electrocorticographic representations of segmental features in continuous speech
Brunner, Peter; Brumberg, Jonathan S.; Lotte, Fabien. - : Frontiers Media, 2016
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5
Spatio-temporal Progression of Cortical Activity Related to Continuous Overt and Covert Speech Production in a Reading Task (Dataset)
Brumberg, Jonathan S.; Krusienski, Dean J.; Chakrabarti, Shreya. - : Public Library of Science, 2016
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6
Electrocorticographic representations of segmental features in continuous speech
Lotte, Fabien; Brumberg, Jonathan S.; Brunner, Peter. - : Frontiers Media S.A., 2015
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