[Polar coordinates for Talairach's stereotaxic system. Use of Reichert's stereotaxic system arcs with Talairach's frame].

: A description of the adaptation of Riechert's stereotactic aiming--bows to the stereotactic frame of Talairach is given. The combination facilitates the use of polar coordinates in the orthogonal system of Talairach for targets in the midline and near to the midline such as tumors, nuclei of the thalamus for example.