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An MRI guided breast biopsy is a minimally invasive procedure that combines the technology of a magnetic field, radio waves, and a computer as guidance for a needle biopsy to sample a breast abnormality.

Preparation for an MRI Guided Breast Biopsy

Prior to the procedure, you should inform the doctor about any health conditions, and the possibility of pregnancy. It should however be noted that the magnetic field is not harmful but may cause some medical devices to malfunction.

Breast MRI exams require injection of a contrast material; therefore, the doctor will double check if you have known allergies to the contrast material.

The Procedure

At Clemenceau Medical Center our MRI guided breast biopsy procedure is performed by a sub specialized and trained Breast radiologist.

Immediately before the procedure commences, the patient will change into a hospital gown.

Then the patient lies face down on a moveable exam table and the doctor positions the affected breast in an opening on the table.

An intravenous (IV) line is put into the patient’s hand whereby the contrast material is given intravenously.

The breast is gently compressed between two compression plates, then using computer software, the radiologist measures the position of the lesion in respect to the grid and calculates the position of the needle placement.

A local anesthetic is then injected into the skin at the site where they will insert the biopsy needle. The doctor then makes a very small cut on the skin at the site where they will insert the needle.

The tissue samples are then removed using the Vacuum-assisted Biopsy technique. With this method, vacuum pressure is used to pull a tissue from the breast through the needle into the sampling chamber.

Once the biopsy is complete, the doctor will apply pressure to stop any bleeding, and cover the opening in the skin with a dressing.

Benefits of the procedure:

  • Minimal downtime
  • The procedure is fairly fast, and safe
  • It is a noninvasive imaging technique that does not involve exposure to radiation
  • The procedure is less invasive than surgical biopsy, thus leaves little or no scarring
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