期刊
JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY
卷 24, 期 1, 页码 99-105出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00004728-200001000-00021
关键词
brain, anatomy; brain, speech; brain, neoplasms; maps and mapping; magnetic resonance imaging, functional (fMRI)
Purpose: The purpose of this work was to compare the cortical localization of receptive speech using functional MRI (fMRI) and direct intraoperative electrical stimulation. Method: Three strongly right-handed patients with primary neoplasms of the left parasylvian region underwent fMRI while subjected to a passive listening task designed to activate receptive language areas. All three subjects then underwent awake intraoperative language mapping using direct electrical stimulation of the cortex. Results: In all three subjects, similar, but nonidentical, cortical regions were identified as involved in receptive language function by fMRI and direct cortical stimulation mapping. Conclusion: fMRI provides excellent receptive language mapping, but its results must be interpreted with caution due to conceptual and technical differences from direct cortical stimulation mapping.
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