stereotactic
Pronunciation: ster-ee-oh-TAK-tik
A surgical technique using three-dimensional coordinate systems to precisely locate and target specific brain structures.
Full Definition
Stereotactic (or stereotaxic) refers to a neurosurgical approach that uses three-dimensional coordinate systems and specialized equipment to precisely locate and access specific targets within the brain. This minimally invasive technique relies on detailed neuroimaging (CT, MRI) and mathematical calculations to guide surgical instruments to exact anatomical locations with millimeter precision. Stereotactic procedures include biopsies, electrode implantations for deep brain stimulation, radiosurgery treatments, and targeted lesioning procedures. The technique significantly reduces surgical risk by avoiding eloquent brain regions and minimizing tissue damage. Medical editors frequently encounter this term in neurosurgical reports, treatment planning documentation, and radiosurgery protocols. Modern stereotactic systems may be frame-based (using rigid head frames) or frameless (using image guidance systems). The precision offered by stereotactic techniques has revolutionized treatment options for movement disorders, epilepsy, and brain tumors.
Usage
Usage note: Precise surgical technique; often combined with other terms like 'stereotactic biopsy' or 'stereotactic radiosurgery.'
In Context
- "Stereotactic biopsy was performed to obtain tissue diagnosis without open craniotomy." — Neurosurgical procedure note
- "The patient underwent stereotactic radiosurgery for the arteriovenous malformation." — Radiation oncology treatment plan