The gamma knife is a device used in neurosurgery that uses low doses of radiation to treat and eventually kill both benign and malignant tumors in the brain without need of invasive surgery. Though it is called a gamma knife, there is no blood or traditional surgery involved. The tumors are treated with a high precision laser that applies radiation to the tumor to stop further growth.
Gamma knife radiosurgery is considered to be safer than traditional surgery with the least damage to healthy tissue and trauma to the brain. Treatment is painless and can be given in less than a day. Some top countries with gamma knife systems installed include Korea, India, and the Philippines. Surgeons have administered gamma knife treatments for over thirty years in over twenty-five countries.