Diagnostic Imaging Center

Having an MRI

If you have been told you will be having an MRI at Pinnacle Hospital, the following information will provide you with basic information about the procedure, how to prepare, and what to expect.

What is  an MRI?
Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. Because of its advanced technology, MRI images provide physicians with information that cannot be seen utilizing X-ray, ultrasound, or even computed tomography (CT) scan. The images that are produced by an MRI procedure are amazingly clear and allow for the most comprehensive diagnosis of medical abnormalities. An MRI may be prescribed for any number of diagnostic reasons, including scanning the brain and other body parts for tumors, viewing blockages of blood vessels, or scanning bones and related structures for signs of arthritis. Similar to a CT procedure, the patient is placed on a table and the table slides into the MRI machine. Once completed, the images are interpreted by a radiologist with findings relayed to your physician or specialist.

How to prepare for an MRI
Preparing for an MRI test usually requires no special procedures. You will receive general instructions about eating and drinking restrictions. It is advised that you remove all jewelry and accessories before arriving at Pinnacle. Prior to your procedure you will need to remove any hearing aids and dental work.

If a contrasting agent is required for your exam, you will be advised. Please advise the technician if you have ever had an adverse reaction to a iodine or a contrast agent.

If any of the following apply to you, you will not be allowed to undergo an MRI:

• You have a pacemaker - an MRI can cause malfunction
• You have shrapnel, bone plates, or pins
• You have aneurysm clips - an MRI may cause the clip to tear the artery it is trying to protect
• You have implanted spinal cord stimulators
• You have inner ear implants
• You have dental implants - some are magnetic
• You have metal heart valves
• You have tattooed eyeliner - iron pigments can cause irritation
• Women who have intrauterine devices (IUD)
• You are pregnant

You will remove most articles of clothing, depending on the procedure, and wear a hospital gown during the procedure.

During the MRI
You will lie on a table that is moved into the MRI machine. It is important that you lie as still as possible to attain the most accurate images. Straps may be used to keep you immobile. A technician in an adjacent room will conduct the procedure and speak to you throughout the process. Some patients who are uncomfortable in small spaces may be prescribed medication prior to the procedure. If you feel this may be an issue with you, please discuss this with your doctor. The imaging session should last between 30 and 60 minutes. A waiting room is located near the imaging center for family or visitors.