What you can expect

By Mayo Clinic Staff

During your treatment, MRI allows doctors to evaluate the effects and define areas that need additional treatment.

During the procedure

Treatment time varies, depending on the size and number of fibroids you have. Here's the procedure.

  • You lie on your stomach on a movable table that slides into the opening of the MRI scanner. A doctor monitors you from an adjoining room and can talk to you and hear you by microphone.
  • Using focused ultrasound waves (sonications), each portion of the fibroid is heated. MRI is used to monitor tissue temperature and determine if the fibroid has been heated enough to achieve the desired results. The process is repeated until most of the fibroid has reached a temperature that should destroy the tissue.
  • Each sonication lasts approximately 20 to 25 seconds. Typically it takes about 80 sonications during a treatment session to destroy a fibroid. However, depending on the size and number of fibroids you have, more sonications or a second treatment may be necessary.
  • Throughout the treatment, you'll be asked about your level of discomfort so that your medication can be adjusted or other necessary changes can be made.

After the procedure

You'll need a friend or family member to be with you and drive you to and from your treatment due to the medications you receive during treatment.

When you get home, you can resume your normal daily activities. Usually you'll need only over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen (Advil, Motrin IB, others) or acetaminophen (Tylenol, others), for discomfort.

Jun. 01, 2013