Intraoperative Image Guidance in Neurosurgery: Development, Current Indications, and Future Trends

Figure 2

Sketch of a cartesian coordinate system overlaid to a surface sketch of the human brain. Every point within this 3D volume data set is clearly definable by a combination of three coordinates as shown by the skull model fixed to a frame-based sterotaxy system (Zamorano-Dujovny-Apparatus).