Figure 1: Visualization of the right pyramidal tract with the presented visualization approaches on a 66 year old male patient with a lesion (arrows) on the right side close to the brainstem. (a) FA map, (b) Glyphs, (c) Directional Volume Growing, (d) Fiber Tracking, (e) Evenly Spaced Streamlines, (f) Hull. The images b and d-f combine the visualization of the pyramidal tract with the direct volume rendering of a T1-weighted MR scan where the tumor is manually segmented. The coloring of all images except f is following the standard way of coloring DTI. The direction of the major eigenvector is directly mapped into RGB color space which leads to a red coloring in case of a major eigenvector collinear to the x-axis of the dataset and green and blue coloring for the y- and z-axis respectively. Moreover, standard Gouraud Shading and lighting is applied.