title: Stereotaxic target calculation. Theory and practice.
abstract: Modern neuro-imaging techniques have significantly increased the accuracy of stereotactic procedures and have thereby generated a renewed interest in guided brain surgery. This paper describes the neuroradiological aspects of stereotaxic target calculation (x-, y-, z- coordinates) using the Riechert-Mundinger (Fisher) frame for computed tomography (CT). Selected cases are shown, illustrating patient positioning, CT technique, target identification and calculation. The importance of obtaining pre- and post-stereotaxic CT examinations is emphasized. Finally, future developments such as magnetic resonance (MR) guided stereotaxis and integrated functional-anatomical computer generated 3-dimensional maps, are briefly discussed.
authors.affiliation: Department of Radiology, Universitair Ziekenhuis Antwerpen, University of Antwerp, Belgium.
authors.forename: P M
authors.initials: PM
authors.lastname: Parizel
authors.forename: C
authors.initials: C
authors.lastname: De la Porte
mesh_terms: D001706:Biopsy / Q000295:instrumentation; D001921:Brain / Q000473:pathology / Q000601:surgery; D001931:Brain Mapping / Q000295:instrumentation; D001932:Brain Neoplasms / Q000473:pathology / Q000601:surgery*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D013238:Stereotaxic Techniques / Q000295:instrumentation*; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*