Verification of the DTI-Fiber Tracked Tractus Corticospinalis during Neurosurgical Procedures – First Results

Object: Our aim was to validate the via DTI constructed pyramidal tract by intraoperative monitoring modalities – only nice images or rendering of a functional sytem? Methods: With help of measurements of the isotropy, white matter tracts could be detected. The pyramidal tract was reconstructed by choosing ROIs within its well known anatomic sites. These results were imported in two neuronavigation systems (either BrainLab® or SonoWand®). During tumor resections the cortical and/or subcortical sites as displayed in the navigation systems were stimulated with an Ojemann cortical stimulator and/or Oxford Medelec S…