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MRI Guided Focused Ultrasound (MRgFUS)

Focused ultrasound is an early-stage, non-invasive and incision-free therapeutic technology with the potential to transform the treatment of many medical disorders, by using ultrasonic energy to target tissue deep in the body without incisions or radiation.

Focused ultrasound is the pairing of two innovative technologies:

  • Focused ultrasound—which provides the energy to treat tissue deep in the body precisely and noninvasively
  • Magnetic resonance or ultrasound imaging—which is used to identify and target the tissue to be treated, guide and control the treatment in real time, and confirm the effectiveness of the treatment.

Watch on our new approach to treat essential tremor using MRgFUS.

With focused ultrasound, an acoustic lens is used to concentrate multiple intersecting beams of ultrasound on a target deep in the body with extreme precision and accuracy. Depending on the design of the lens and the ultrasound parameters, the target can be as small as 1x1.5mm or as large as 10x16mm in diameter.

The fundamental principle is equivalent to using a magnifying glass to focus beams of sunlight on a single point to burn a hole in a leaf. Where each of the individual beams passes through the tissue, there is no effect. But, at the focal point, the convergence of the multiple beams of focused ultrasound energy results in many important biological effects, creating the possibility of treating a variety of medical disorders.

Read more about the FDA’s approval of focused ultrasound for .

Patient Testimonial

In , a patient of Brigham and Women's physician Rees Cosgrove, MD, with Parkinson's disease describes his life-changing focused ultrasound experience.

Appointments

If you are interested in focused ultrasound for tremor, it is important to note:

  • To book an appointment or for more details, please call or email program at:
  • Insurance plans are beginning to cover this procedure.
  • Not everyone with tremor is eligible for focused ultrasound; eligibility requires evaluation by a neurologist and a neurosurgeon.

We currently only offer this service at our main campus, 60 Fenwood Road, Boston, MA 02115. .

Our Team

Our surgeons, as part of work with a multidisciplinary team of physician specialists to create an individualized treatment plan for each patient in order to provide the best possible treatment. The multidisciplinary team includes specialists in neurosurgery, neuro-radiology, neuro-physiology and neurology.

Garth Rees Cosgrove, MD

Garth Rees Cosgrove, MD

Neurosurgery

John David Rolston, MD, PhD

John David Rolston, MD, PhD

Neurosurgery

Focused Ultrasound Milestone

In August 2024, we became the third site in the country to treat 500 patients with FUS.

Focused Ultrasound for Tremor - Dr. John Rolston, MD, PhD

What You Should Expect

Brigham and Women’s Hospital provides a multidisciplinary approach to patient care, collaborating with colleagues in other medical specialties. If your surgeon discovers an underlying illness or concern, you will be referred to an appropriate BWH physician specialist for an expert evaluation.

Research and Clinical Trials

The Department of Neurosurgery at Brigham and Women’s Hospital is a pioneer in neuroscience and is dedicated to the research of neurological disorders. Learn more about our current clinical trials.

Focused Ultrasound in the News


Radio Health Journal | April 3, 2022


Brigham Bulletin | September 1, 2021


WCVB | October 20, 2020


Our American Stories | December, 2019


Boston Globe | November 27, 2019


Focused Ultrasound Foundation | May, 2016


STAT News | August 24, 2016


Science Daily | August 24, 2016


The New England Journal of Medicine| August 25, 2016

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