Safety and Effectiveness of Unilateral MR-Guided Focused Ultrasound Thalamotomy for Essential Tremor

This intervention involves a unilateral magnetic resonance-guided focused ultrasound (MRgFUS) thalamotomy targeting the ventral intermediate nucleus (VIM) of the thalamus. The procedure is non-invasive and uses MRI guidance to deliver focused ultrasound energy to ablate the target area. It is performed without surgical incisions or implanted devices. The intervention is intended for patients with medication-refractory essential tremor. Participants receiving this intervention will be followed for 12 months to assess efficacy and safety.