The system’s cleared indications now include refractory, intractable mesial temporal lobe epilepsy (MTLE) in adults. Gamma Knife surgery treats refractory, drug-resistant MTLE by precisely focusing 192 beams of gamma radiation to target and disrupt the exact region of the brain responsible for epileptic seizures. It potentially reduces frequency or eliminates the seizures without opening the skull.

Elekta designed its dedicated intracranial system designed exclusively for brain radiosurgery. Initially, the company focused on treating functional indications like intractable epilepsy without open brain surgery. Over the years, the company has brought it to a range of functional indications. Those include essential tremor, trigeminal neuralgia and intractable epilepsy.