stereotactic radiosurgery
Also written as: SRS — stereotactic radiosurgery
A non-invasive neurosurgical technique that delivers precisely targeted high-dose radiation to treat brain tumors and vascular malformations.
Full Definition
Stereotactic radiosurgery uses multiple converging radiation beams to deliver a concentrated dose to a specific brain target while minimizing exposure to surrounding healthy tissue. Common systems include Gamma Knife and linear accelerator-based platforms. The procedure treats arteriovenous malformations, meningiomas, acoustic neuromas, and brain metastases. Despite the name 'surgery,' no incision is made. The stereotactic frame or frameless imaging ensures submillimeter accuracy in targeting.
Usage
Usage note: Often abbreviated as SRS; clarify specific system used (Gamma Knife, CyberKnife, etc.).
In Context
- "Stereotactic radiosurgery achieved complete obliteration of the arteriovenous malformation at 2-year follow-up." — Neurosurgical outcome study
- "The acoustic neuroma was treated with single-fraction stereotactic radiosurgery to preserve facial nerve function." — Treatment planning document