A Prospective, Randomized, Sham Controlled Study to Evaluate the Safety and Efficacy of ExAblate Subthalomotomy for the treatment of Parkinson's disease motor features.~The objective of this prospective, randomized, double-blind (to subjects, examining neurologists and external video-based examination by Movement Disorders neurologist), two-arm study (ExAblate treated arm Vs ExAblate Sham treated control arm) is to confirm the efficacy of ExAblate Model 4000 Type 1 System for the treatment of Parkinson's disease (PD) motor features and to further demonstrate safety.
The objective of this study is to test the efficacy and safety of unilateral subthalamotomy performed using the ExAblate System for the treatment of Parkinson's disease (PD) motor features.