MRgFUS Research Study

Past Research

ExAblate UF V2 System for the Treatment of Symptomatic Uterine Fibroids

The purpose of this study is to evaluate the safety and ablation efficacy of the ExAblate UF V2 System when treating symptomatic uterine fibroids.

The ExAblate System is a medical device that involves a focused ultrasound system and an MRI scanner. ExAblate delivers a pulse of focused ultrasound energy, or sonication, to the targeted tissue. In this particular study, the targeted tissue is uterine fibroids. Each sonication is used to heat small spots in the fibroid much like a magnifying glass can be used to focus light to heat a spot. The heat created kills a portion of the fibroid with the goal of decreasing or eliminating uterine fibroid-related symptoms. Repeated sonications are performed until the entire fibroid is treated or the treated volume is determined to be appropriate.

The ExAblate system is commercially approved in the United States to treat symptomatic uterine fibroids.

The ExAblate UF V2 System is an experimental device and is being investigated in this study. While similar to the commercial system, the ExAblate UF V2 device includes the following major changes, among others, which are intended to improve device performance and safety:

  • Up and down movement of the ultrasound transducer, in an attempt to improve fibroid treatment by moving the ultrasound focal point within the targeted fibroid.
  • Ultrasound energy can be turned off for a specific area in an attempt to minimize amount of energy passing through sensitive areas of the body.

To be eligible to be considered for the study a woman must:

  • Be age 18 or older
  • Be symptomatic with uterine fibroids and are not seeking treatment for the reason of improving fertility.
  • Be patients who are pre or peri-menopausal (within 12 months of last menstrual period)
  • Have fibroid(s) Clearly visible on non-contrast MRI
  • Have completed child bearing
  • Be able to communicate sensations during the ExAblate procedure.

Interventional Radiology Physicians perform several types of procedures to treat uterine fibroids but we only take referrals from UCSF OB/GYN after they they have had a chance to evaluate you as a candidate first. Please see the website listed below and call the number for a consultation, they will go over all the options and have new MRIs ordered for you if no recent ones are available.

UCSF Comprehensive Fibroid Center