What is the Gamma Knife?


The Gamma Knife is a type of radiation therapy used to treat brain disorders, including brain tumours, functional disorders (e.g., trigeminal neuralgia), and other conditions that require precise radiation targeting. It delivers a highly focused, high-dose radiation to the target area, minimizing exposure to surrounding healthy tissue (a process also called stereotactic radiosurgery).

Radiosurgery is often used when traditional surgery is not possible or when the patient wishes to avoid the risks associated with surgery. It is a highly effective treatment option for many conditions, with a high success rate and low risk of complications. However, it is important to discuss the potential benefits and risks of radiosurgery with a healthcare provider to determine if it is the right treatment option for each individual patient.

How does the Gamma Knife work?
The Gamma Knife uses 192 cobalt-60 sources to deliver high-dose radiation to the targeted area in the brain. The beams are shaped to precisely focus on the target while minimizing exposure to surrounding healthy tissue.

The Gamma Knife works by delivering a high dose of radiation to the target area, which destroys the cells and shrinks the tumour or AVM. The procedure is non-invasive and does not require an incision, reducing the risk of complications compared to traditional brain surgery. However, as with any medical procedure, there are risks and side effects associated with Gamma Knife treatment that should be discussed with a healthcare provider.