MRI (Magnetic Resonance Imaging)

MRI equipment uses a strong magnetic field and radio waves to produce extremely detailed, cross-sectional pictures of body tissue, organs and bones. It is used to detect cancer, heart and vascular disease, joint and musculoskeletal disorders, as well as many other conditions.

At Northwestern Lake Forest Hospital Diagnostic Imaging Centers, we offer the following types of MRIs:

• High-field MRI, including Breast and Cardiac
• Open MRI for claustrophobic and obese patients
• Functional MRI and MRA (magnetic resonance angiography)

What happens during an MRI?

During an MRI, you will lie on a sliding table and be positioned by the technologist depending on what part of your body is being scanned.  We will provide earplugs to wear, as the machine can make a lot of noice. It is very important to remain still during the procedure.   Different body parts require various positions and lengths of time.  An MRI can last 15-45 minutes.

Certain studies require an injection of contrast to enhance the images of certain tissue and organs.  This contrast is administered via IV and should not produce any reaction or side effects.

How do I prepare for an MRI?

You cannot have an MRI if you have a pacemaker, brain aneurysm clip more than 10 years old, middle ear or cochlear prosthesis, neurostimulator, or have had surgery within the past week.  You must advise the technologist if you have any prosthetic devise, such as a knee or hip replacement.  As with all radiological procedures, you should inform your technologist if you may be pregnant.

Nothing containing metal or wire can enter the MRI, so please:

• Do not wear any jewelry or hair ornaments
• Remove all jewelry, earrings, watches, eyeglasses
• Remove everything from your pockets, such as wallets, credit cards, Metro cards, coins, keys

Your physician may prescribe a sedative, in which case you must be accompanied by a companion.

 

For more information, please contact your physician or our main Radiology (Diagnostic Imaging) office at (847) 535-6300.