An overview of CT based stereotactic systems for the localization of intracranial lesions.

Computed tomography, with its inherent accuracy in identifying and localizing intracranial lesions, has been adapted by several groups for use in stereotactic neurosurgical procedures. The systems range from the use of data obtained on conventional CT scans to installation of a dedicated CT scanner in the operating room equipped for stereotactic surgery. Although the GE-8800 scanner is used most frequently, others are also suitable. Adaptations of standard commercially available stereotactic frames are used by some groups while others designed frames specifically for this purpose. The paper is an overview of systems described in the literature to date.