MRI-guided focused ultrasound (FUS) is an incisionless procedure that uses highly focused ultrasound energy to create a small, precise lesion in the thalamus — the area of the brain involved in tremor. During treatment, MRI provides real-time imaging and temperature monitoring, allowing the neurosurgeon to accurately target the brain region responsible for the tremor while preserving surrounding tissue.

One key advantage of focused ultrasound is that it does not require an incision or implanted hardware, allowing many patients to return home the same day. Because treatment is performed while the patient is awake, the care team can assess tremor improvement throughout the procedure to help optimize results.