This title contains the latest techniques on stereotaxis and brain mapping, image-guided interventional radiology and neuroendoscopy. The contributions are provided by an international group of neurosurgeons, radiologists and radiation oncologists. Practical guidelines for performing each procedure are provided. A feature is the editors' comparative discussion of applications. The questions of the varying effectiveness of these techniques, cost versus benefit, and the benefits compared to more traditional methods are addressed within a clinical context.