Presurgical Functional Mapping of the Sensorimotor Area Using Evoked Magnetic Fields Makoto OISHI 1,2 , Shigeki KAMEYAMA 1 , Masatoshi WATANABE 2 , Tadashi KAWAGUCHI 2 , Nohuhito MOROTA 1 , Masaru TOMIKAWA 1 , Hiroshi MASUDA 1 , Hideaki TAKAHASHI 2 , Ryuichi TANAKA 2 1Department of Neurosurgery, National Nishi-Niigata Central Hospital 2Department of Neurosurgery, Niigata University, Brain Research Institute Keyword: magnetoencephalography , functional mapping , somatosensory evoked magnetic field , movement-related cortical magnetic field , brain tumor pp.391-397
Published Date 2002/4/10
DOI https://doi.org/10.11477/mf.1436902196
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In the present study, we evaluated the usefulness of magnetoencephalography (MEG) for presurgical identification of not only the central sulcus by somatosensory evoked magnetic fields (SEFs), which is a well-known, reliable tech-nique, but also the primary hand motor area by movement-related cerebral magnetic fields (MRCFs). Subjects were 10 patients with brain tumor (6 glial tumors, 3 cavernous angiomas, and 1 metastatic tumor) around the sensorimotor area.

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