Magnetic Resonance Imaging (MRI) is a sophisticated imaging technique utilizing magnetic fields and radio waves to produce detailed images of the breast. An MRI-guided breast biopsy is a minimally invasive procedure that doesn’t involve radiation, allowing doctors to collect tissue samples from suspicious areas in the breast. This helps in determining whether an abnormality is benign or requires further attention. Early detection of potential problems is crucial, as it expands treatment options and enhances the chances of a successful recovery.
What to Expect During the MRI-Guided Breast Biopsy Procedure
When scheduling your MRI-guided breast biopsy, it’s important to allocate a couple of hours for the entire appointment. This includes preparation and post-procedure care, in addition to the biopsy itself. The actual biopsy procedure can take up to an hour. During this time, you will be lying face down on a specialized scanning table. Similar to a standard breast MRI, the process utilizes radio frequencies and a strong magnet, often in combination with a contrast material, to generate highly detailed images of your breasts. As the scan commences, you’ll likely hear a series of muffled thumping and beeping sounds, which will continue for several minutes.
After the initial set of images are acquired, a contrast fluid may be administered intravenously through a small IV catheter. This contrast helps to highlight specific areas of concern and allows for more detailed imaging. Following the contrast injection, additional images will be taken.
MRI-guided breast biopsy setup
Once the area of concern has been identified, a radiologist will thoroughly clean the skin and inject a local anesthetic to numb the region. A very small incision, typically around 1/4 inch, will then be made in the skin.
Using real-time imaging guidance, the radiologist will precisely locate the abnormality and extract several small tissue samples. These samples will then be sent to a pathology lab for examination and interpretation. Following tissue removal, a small metallic marker is placed at the biopsy site. This marker serves as a reference point for future imaging or procedures, if needed, and confirms that the targeted area has been successfully biopsied. A mammogram is usually performed after the biopsy to document the marker’s position.
Some women may experience mild discomfort during the procedure, while others report feeling no discomfort at all.
Preparing for Your MRI-Guided Breast Biopsy
During the scheduling process, the healthcare team will thoroughly review your medical history and current medications. On the day of the procedure, you can eat and drink as usual. It’s recommended to wear a comfortable, loose-fitting two-piece outfit, as you will need to remove your top before the exam. A soft robe will be provided for your comfort. Avoid using any powders, perfumes, deodorants, or lotions on your underarms and breasts prior to the procedure. Moist towelettes will be available if needed, and deodorant will be offered after the exam.
Given that an MRI machine uses a powerful magnet, it’s crucial to inform the medical team about any metal implants or objects in or on your body. Wear pants (such as sweatpants or yoga pants) without any metal components and leave jewelry and other metal items at home. A locker will be provided for your belongings. The MRI machine can be quite noisy, so you are welcome to bring a CD with music to play during the procedure.
To ensure you receive the best possible care, please arrive on time for your scheduled appointment. Patients who arrive late may have their procedure rescheduled.
Post-Procedure Care After an MRI-Guided Breast Biopsy
Following your MRI-guided breast biopsy, wear a supportive bra and keep the gauze dressing covering your incision clean and dry for the first 24-48 hours. Applying ice to the biopsy site may help reduce swelling and discomfort. Detailed self-care instructions will be provided to you immediately following the procedure.
Avoid strenuous activities for 48 hours after your exam, especially activities involving repetitive movements of the chest and arms, such as lifting, vacuuming, swimming, and exercising.
Receiving Your Results
The tissue samples obtained during your biopsy will be sent to a pathology lab for analysis. Once the lab provides the results, which typically takes a few days, a final report will be sent to your referring healthcare provider. They will then explain the results to you and address any follow-up questions you may have.
Under the 21st Century Cures Act, healthcare providers are legally required to provide you with access to your results within 24 hours of them being finalized. This may mean you receive your results before your healthcare team has had a chance to contact you.
If you have any questions or concerns about the MRI-guided breast biopsy procedure, please do not hesitate to contact the Biopsy Coordinator. They can provide further information and support throughout the process.
The Carol Milgard Breast Center holds full accreditation in breast MRI from the American College of Radiology (ACR), signifying their commitment to providing patients with exceptional image quality and a safe environment.
