ABSTRACT
The field of functional neurosurgery has developed hand in hand with that of stereotaxis. Although Meyer first performed ablation of basal ganglia structures for control of tremor in 1942 as an open procedure, the safety of these procedures was significantly improved by the development of the stereotactic apparatus [1]. A number of stereotactic frames (and atlases) have been developed, most notably by Spiegel and Wycis [2], Talairach [3], Leksell [4], and Brown, Roberts, and Wells [5]. Successful placement of percutaneous lesions and implants relies on the precise subcortical localization each of these devices affords.
