Magnetic Resonance Imaging (MRI) is a diagnostic imaging technology that uses a strong magnet and radiofrequency waves to produce pictures or "images" of your breasts.
Breast MRI is not used for routine screening. It is useful to provide more information about a suspicious area detected on a physical exam, mammogram, or ultrasound. It can assist in the evaluation of a breast cancer patient who wants breast-conserving surgery. Other uses of Breast MRI are to evaluate breast implants for leaks or ruptures and to assess women with a high risk of malignancy under recommendations established by the American Cancer Society.
In MRI, a magnet linked to a computer creates detailed pictures of areas inside the breast without the use of radiation. Each MRI produces hundreds of images of the breast from side-to-side, top-to-bottom, and front-to-back. The MRI images are then interpreted by a radiologist with advanced training and experience in breast imaging evaluation.
Suspect lesions can be biopsied using a needle with vacuum assistance. This method that we commonly use with ultrasound or stereotactic (mammographic) guidance is also available for MRI. Vacuum-assisted biopsy has proven as effective as open surgery for providing reliable pathology results.
The following are answers to the most common questions specific to this procedure:
I am not at high risk. Should I have a breast MRI anyway?
No. Mammography is excellent, and remains the imaging method of choice for the majority of women. For these women MRI presents no measurable value beyond a screening mammogram.
Why isn’t MRI used for general screening?
MRI has higher sensitivity than mammography, but lower specificity. This means that MRI finds more areas of interest, but it may not specify which are cancers and which are not. This results in more biopsies, which is an acceptable consequence for women at high risk, but not for women at normal risk.
Can everyone have breast MRI?
Not everyone. Women with metallic orthopedic implants, pacemakers and other electronic medical implants cannot have MRI examinations. There are also some patients with kidney problems who cannot tolerate the contrast agent that is used. Solis personnel will interview you about all of these conditions before deciding to offer you a breast MRI.
If I need an MRI can I get it on the same day as my other imaging?
Probably not. Breast MRI is quite expensive and most insurance companies require a precertification process that usually results in scheduling delays. Your referring physician and Solis will work together in the precertification process.
If I am scheduled for a breast MRI, how should I prepare?
There is really no pre-exam preparation. You may eat and drink as you normally would and take any medications that you normally take. Please dress comfortably, but make certain that you choose clothes that do not contain any metal zippers, buttons, or snaps. No metal is allowed in the MRI exam area. You will also be asked to remove all metal jewelry before entering the room.
How long will the breast MRI take?
The average breast MRI examination takes 30-45 minutes. You should, however, plan on additional time to register before the examination and to dress before leaving.
