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Guided Breast Biopsies About MRI Guided Breast Biopsy MRI guided breast biopsy uses images generated by radio waves to guide a radiologist’s insertion of a needle or other small instrument that extracts samples from the precise location of suspicious tissue. After the biopsy, the tissue samples are tested in a laboratory to determine whether they are cancerous. Who Benefits from MRI Guided Breast Biopsy MRI guided breast biopsy is often the best procedure to use when the suspicious tissue was originally identified through an MRI, which sometimes makes abnormalities visible that are difficult to see via other imaging methods. Preparing for MRI Guided Breast Biopsy An RMI Nurse Navigator will contact you prior to your appointment to discuss how to prepare. Generally, you can expect to wear a gown that RMI will provide. You should also inform us before scheduling your appointment if you have any metallic surgical implants or accidentally implanted metallic objects (for examples, see our general MRI page.) You may need to remove any jewelry or accessories that could interfere with the radio waves. During the exam, you will lie facedown on a table combined with the MRI unit. The table is designed with special openings in which the breasts are positioned for the exam. To numb the breast so that you will feel little or no sensation when the biopsy needle is inserted, you will receive an injection of anesthesia, which may cause some drowsiness. So it is a good idea to arrange to have someone drive you home after the exam. The procedure is done on an outpatient basis and is virtually painless, taking about 45 minutes. We may recommend that you use a cold pack and over-the-counter pain medications to relieve any discomfort from mild swelling or bruising after the procedure. You should avoid strenuous activity for the first 24 hours, but should otherwise be able to resume a normal routine. Resources MRI-Guided Breast Biopsy information from the Radiological Society of North America. |
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