Fig 9. Tractograms of the projection fibers and corona radiata pre- (A) and postoperatively (B) for patient 4. An FA threshold of 0.08 was used for terminating fiber trajectories. The trajectories are color-coded according to their anteroposterior position. Their relative position is shown in axial and sagittal FA maps. Continuous trajectories were obtained even through regions of low anisotropy (arrows, A).