How does breast mri work?

During the examination, you lie face down on a platform with openings for your breasts. The platform moves into an MRI Scanner, where the magnetic field and radio waves make signals from breast tissue. A computer turns those signals into cross-sectional images that can be viewed from different directions.

A contrast medicine may be injected into a vein to make areas with different blood flow easier to see. Breast MRI can show tissue that is difficult to assess with other imaging, but it can also find areas that need additional tests and does not replace a clinical assessment or biopsy when one is advised.

Tell the imaging team about pregnancy, breastfeeding, kidney problems, allergies, implanted devices, metal fragments and previous reactions to contrast. Remove metal items and follow instructions about food, drink and medicines. The scanner makes loud knocking sounds, so you may receive hearing protection and can communicate with the team during the examination.

Remain as still as you can while images are taken. If you feel claustrophobic, ask beforehand about comfort measures. A Mammogram uses X-rays and may be recommended alongside MRI because the tests show different features.

Breast MRI is usually planned rather than an emergency test. Seek prompt medical assessment for a new breast lump, bloody nipple discharge, a nipple that changes shape, skin dimpling, redness with fever, or rapidly increasing breast swelling; do not wait for a scheduled scan.

After contrast, seek urgent help for trouble breathing, facial or throat swelling, widespread hives, severe dizziness or collapse. Report other unexpected symptoms to the imaging team or your clinician.

Ask why MRI is recommended, whether contrast is needed, how it fits with mammography or ultrasound, and when the report will be reviewed. If you have a BRCA Gene Mutation or a personal breast cancer history, ask how the result affects your surveillance plan. Risk-Reducing Mastectomy is a separate treatment discussion, not an imaging test.