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Abstract #3658

"Form Follows Function": Anatomic and Functional Localization of Eloquent Cortex

Mai-Lan Ho1, Rafael Rojas1, David Hackney1

1Radiology, BIDMC, Boston, MA, United States

The purposes of this exhibit are: 1. Describe imaging signs of major cortical regions on conventional CT and MR, with attention to the central sulcus and surrounding anatomic landmarks. 2. Establish the validity of anatomic techniques for localizing eloquent cortex, based on correlation to functional MRI (fMRI) activation maps in selected case studies. 3. Identify scenarios in which technical, patient, and lesion factors may limit anatomic and/or functional characterization.

Keywords

abnormalities accurate activation alternating anatomic anatomy artifacts awareness axial basic behind bifurcate block bracket brain brains central cerebral characterizing close closest compression considered contraindication correlate correlated cortex cortical dedicated described determine diagnosis discuss discussed displacement distance distort distortion edema educational effective eloquent encloses etiologies examinations except exhibit extending findings fissure form frontal function functional gross hackney hook identification identified important importantly indents infiltration institution intersects joins landmarks language lateral lesion lesions limiting localization located location locations magnet major mapping mass motor next paired pars particular pathologic patient post posterior precisely preoperative primary principles protocol radiology regarding regional related relationship reported required requires resection resident respect retrospective review secondary selected sensitivity severely side studies summary superior supervision supplementary surgery surrounding teaching technical thin thinner variety visible