http://youtu.be/vfHxqyXNpe8

TED talk on ultra-sound

"... Director of Stereotactic and Functional Neurosurgery at the University of Virginia, W. Jeffrey Elias, M.D. has led a number of research investigations, resulting in innovative uses of image-guided interventions to treat debilitating neurological conditions. In 2011, his team became the first in the world to successfully treat a person with disabling tremor using focused ultrasound that was guided by magnetic resonance imaging (MRI). This procedure and subsequent clinical trials have resulted in an outpouring around the globe of investigations using ultrasound interventions to treat disorders of the brain. The past decade has seen advances in ultrasound technology so that acoustic energy can now be safely and precisely delivered thru the intact human skull to reach the deepest regions of the brain.
Stemming in part from the influence of his father, a neurologist, Dr. Elias developed the goal of using less invasive surgical techniques to treat chronic, neurological disorders. For the past 12 years, his practice has specialized in using precise, stereotactic techniques and brain stimulation to treat diseases such as Parkinson's disease, tremor, and epilepsy. .."

(Ultrasound research is funded in part by MJF Foundation