Gammasädehoito

Gammasädehoito, also known as gamma knife radiosurgery, is a non-invasive medical procedure used to treat brain tumors and other abnormalities within the brain. It delivers a highly focused beam of gamma rays to the targeted area, effectively destroying diseased cells while minimizing damage to surrounding healthy tissue. This precise delivery is achieved through the use of multiple beams that converge at a single point.

The procedure involves imaging techniques, such as MRI or CT scans, to precisely map the target. A specialized helmet or head frame is then used to immobilize the patient's head, ensuring accuracy during treatment. The gamma rays are emitted from a cobalt-60 source and directed from many different angles towards the lesion. The integrated beams deliver a single, high dose of radiation in one session.

Gammasädehoito is commonly used for treating small to medium-sized brain tumors, arteriovenous malformations (AVMs), and trigeminal neuralgia. It is an alternative to traditional open surgery for certain conditions, offering benefits such as a shorter recovery time and reduced risk of complications. While generally safe, potential side effects can include temporary fatigue, headache, or localized swelling. The long-term effectiveness and potential side effects are closely monitored by medical professionals.