The Gamma Knife is a noninvasive, incredibly precise tool for administering radiation, usually to brain and skull-base tumors, blood vessel abnormalities and cases of neuralgia. Doctors are able to meticulously focus the radiation, destroying tumors without harming nearby tissue in one of the body’s most sensitive spots—the brain.The Gamma Knife allows non-invasive brain surgery to be performed with extreme precision while sparing healthy tissues surrounding the targeted treatment area. Also, because neither a surgical incision nor general anesthesia is required, the risks usually involved with open brain surgery, such as hemorrhage or infection, may be reduced. Jun 26, 2020 · Hence, conclusive radiological follow-up was available in 123 meningiomas (94.6%). Ten percent of the patients had a radiological or clinical follow-up of less than 5.7 years and 5.6 years, respectively. The patients were followed clinically for a median of 9.4 years (2.1–17.4 years) with clinical follow-up being available in 95.3% (82/86). For small volume lesions (up to 4-5 cc) full doses can probably be given (e.g. 22-24Gy, if over the motor strip 22Gy) for somewhat larger (5-8cc) the dose can be dialed down a bit (20-22Gy, but it may be useless to treat radioresistant mets to < 20Gy) for larger lesions (>8cc) then lower doses (16Gy) may be necessary.
Gamma Knife surgery is a safe and effective therapeutic modality that improves QOL for LC patients with a BM volume ≤ 5 cm 3 at treatment. Careful follow-up and salvage therapy on demand seem to prevent worsening of QOL due to relapse of BMs.
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