He had a thalamotomy done years ago, before revealing he had Parkinson's.

I doubt the FDA will be quick to approve permanent zapping of brain cells, but who knows?

Addendum:
After reading the article (link posted above by dilmar - ALL 25 pages!) there are several considerations to be taken with MRI focused ultrasound therapy. The work done in this area ( as noted in the article) dates back to 1959! I was a little shocked by this fact. So we definitely can't call this "new" work. And it works best on tremor-dominant people.

The key to any of these invasive procedures ( and focused ultrasound is invasive, also), is to find a very precise location deep in the brain's structures. The lazar can heat up surrounding skull bones and cause permanent damage, and with DBS, the exact location to the tiniest spot must be carefully found, possibly resulting in a brain bleed or stroke.

Read everything you can, talk to those who have had the surgery, pray, and keep your fingers crossed if considering this type therapy.