Preoperative magnetic source imaging for brain tumor surgery: a quantitative comparison with intraoperative sensory and motor mapping.

  title={Preoperative magnetic source imaging for brain tumor surgery: a quantitative comparison with intraoperative sensory and motor mapping.},
  author={Hagen Schiffbauer and Mitchel S. Berger and Paul Ferrari and Dirk Freudenstein and Howard A. Rowley and Timothy P. L. Roberts},
  journal={Neurosurgical focus},
  volume={15 1},
OBJECT The aim of this study was to compare quantitatively the methods of preoperative magnetic source (MS) imaging and intraoperative electrophysiological cortical mapping (ECM) in the localization of sensorimotor cortex in patients with intraaxial brain tumors. METHODS Preoperative magnetoencephalography (MEG) was performed while patients received painless tactile somatosensory stimulation of the lip, hand, and foot. The early somatosensory evoked field was modeled using a single equivalent… 

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