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A precise method of identifying nonvisualized anatomic structures by use of three-dimensional coordinates; more frequently used for brain and spinal surgery.
any of several techniques for the production of sharply circumscribed lesions in specific tiny areas of pathological tissue in deep-seated structures of the central nervous system. The site to be worked on is localized with three-dimensional coordinates. Methods of producing lesions include heat, cold, x-rays, and ultrasound. Also called stereotaxic surgery.