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Fig 6. Tractograms of the corticospinal tracts superimposed onto preoperative (A and C) and postoperative (B and D) axial FA maps for patient 2. C and D, Similar axial sections were used to indicate the anatomic locations of the tracts. Coherent and uninterrupted pathways were obtained for both pre- and postoperative tractograms. Postoperatively, the ipsilateral corticospinal tract returns to near-normal anatomic position and becomes more symmetric with respect to the contralateral tract.
