An MRI is a test that uses a strong magnetic field and radio waves to take detailed images of organs and tissues. The atoms in your body respond to this energy. An MRI detects this response.

When you get an MRI, you can't have any metal objects like jewelry or zippers because of the strong magnet.

Unlike X-rays or CT exams, an MRI does not use radiation. Some MRI exams use contrast. Contrast helps improve the clarity of images to make a diagnosis more accurate.

We perform many types of MRI exams, including breast MRI, cardiac MRI and prostate MRI. We also have an open MRI scanner at our Mass General Imaging - Chelsea location. 

A breast MRI creates highly detailed images of breast tissue. It is used with other imaging such as mammography and ultrasound to provide an overview of breast health.

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A cardiac MRI is a special type of MRI exam designed to look at the structure and function of the heart. 

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Open MRI has magnets above and below the patient, with plenty of open space on either side. The open design of the scanner means patients are more comfortable when positioned for their MRI scans.

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A prostate MRI is a dynamic contrast enhanced type of MRI. It uses contrast that is injected though an IV and measures how your body absorbs it. 

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This exam measures fat, iron levels and damage in the liver with greater detail than liver elastography using ultrasound and other diagnostic tests.

You can use this information to prepare for most MRIs. You need to follow special instructions to prepare for a cardiac MRI and a prostate MRI.

Log into Patient Gateway for more details on your specific appointment.