Surgery, stereotactic
Surgery in which a system of three- dimensional coordinates is used to locate the site to be operated on. Stereotactic surgery is used in neurosurgery (and neurological research) for locating points within the brain. This is usually done by using an external, three-dimensional frame of reference based on the Cartesian coordinate system. A stereotactic needle biopsy is a biopsy in which the spot to be biopsied is located three-dimensionally, the information is entered into a computer, and the computer calculates the information and positions a needle to remove the biopsy sample.

Medical dictionary. 2011.

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