Why do I need a MRI scan for breast cancer? A breast MRI is used to assess the extent of breast cancer. It’s also used to screen for breast cancer in women thought to have a high risk of the disease. Your health care provider may recommend a breast MRI if: You’ve been diagnosed with breast cancer and your provider wants to determine the extent of the cancer.
Is a breast MRI better than a biopsy? Magnetic resonance imaging (MRI) may be a more sensitive test for detecting clinically significant breast lesions than mammography, but it does not reduce the need for subsequent tissue sampling once suspicious lesions are identified.
Can an MRI detect breast cancer better than a mammogram? MRI is much more sensitive than mammography. It can find invasive breast cancers sooner than mammograms, and it can rule out abnormalities that appear suspicious on a mammogram.
How long does an MRI for breast cancer take? You will need to be very still during the test, which takes around 30 to 45 minutes. If you’re claustrophobic, being confined within an MRI machine for a long period of time can be difficult. Some facilities have an open MRI machine to avoid this problem, or you may be given a mild sedative.