Fig 4. Pre- (A) and postoperative (B) tractograms of the cingulum bundles for patient 1. The tractograms were generated from a set of seeds placed in the anterior region of the tract. The relative positions of the ipsilateral (red) and contralateral (purple) bundles are labeled onto axial, sagittal, and coronal FA maps. Postoperatively, the ipsilateral bundle terminates before reaching the posterior region of the tract.