Click on image to view larger version.
Fig 3. Tractograms of the corpus callosum before (A) and after (B) surgery for patient 1. The color of the trajectories indicates the local tract orientation by using the RGB convention. Preoperatively, many trajectories of the callosal body appear deviated and several appear interrrupted by the tumor mass (arrow). Postoperatively, coherent trajectories appear to cross the midline; however, abnormal trajectories also appear to be present (blue arrows). The position of the seed points in both tractograms is indicated by black dots. The postoperative tractogram of the corpus callosum was generated by using a FA threshold of 0.04.
