[Stereotaxic computer tomography].

Methods for using computer tomography (CT) in stereotaxic calculations are discussed. A stereotaxic CT method elaborated at the Scientific Research Institute of Neurosurgery, AMS USSR which is intended for the Riechert-Mundinger stereotaxic apparatus is described; the method is used for calculating targets chosen according to CT. In combination with a high resolution (ND-8 000) CT-scanner, the method provides for the attainment of targets with a mean magnitude of error of no more than 1 mm in all directions. The calculations are made by means of computer tomograph service programs. The method is simple, reliable in application, and the patient is exposed to relatively small radiation. The method was used in operations for stereotaxic biopsy on patients with deeply located tumors of the brain and is recommended for application in the neurosurgical clinic, mainly in the diagnosis and treatment of patients with tumors of the brain.