Displaying critical distances to pathologic structures seems to be one of the most common tasks in medical visualization. The display in 2D and 3D is supported. In both cases, you need to compute a distance transformation, with the pathologic structures as seed points. This can be done by using METKDistanceTransform. In 2D, METKSurfaceDistance2D displays the isolines of the distance transformation. In 3D, the distances may be mapped on user specified structures by using METKSurfaceDistance3D.
Needed modules: METKDistanceTransform, METKSurfaceDistance3D,
METKSurfaceDistance2D, standard 2D image display and 3D rendering modules
Example network: METKSurfaceDistance.mlab