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Abstract #0648

Topographic Organization of SMA Connections as Assessed by MR DTI Tractography and Intraoperative Subcortical Mapping

Antonella Castellano1,2, Lorenzo Bello3, Paola Scifo4, Enrica Fava3, Giorgio Carrabba3, Giulio Bertani3, Giuseppe Scotti1, Andrea Falini1

1Neuroradiology Unit and CERMAC, Scientific Institute and University Vita-Salute San Raffaele, Milan, MI, Italy; 2Institute of Radiological Sciences, University of Milano, Milan, MI, Italy; 3Neurosurgery, Department of Neurological Sciences, University of Milano, Milan, MI, Italy; 4Nuclear Medicine Department, San Raffaele Scientific Institute, Milan, MI, Italy

Supplementary motor area (SMA) is a crucial cerebral region involved in the temporal organization of motor tasks, especially in sequential performance of multiple movements. Purpose of this study was to explore functional connections of SMA proper by the means of intraoperative subcortical mapping and DTI tractography in patients with cerebral gliomas; data from stimulation were retrospectively used to define anatomical regions of interest for tractography segmentation of subcortical connections of SMA.