MRI (Magnetic Resonance Imaging)
MRI machines use very strong magnets that produce a magnetic field roughly 25,000 times stronger than the earth’s magnetic field. This magnetic field generates radio waves, which are then directed into the part of the body being examined. A computer interprets the cells’ responses and creates a picture. MRI is a safe and painless procedure. The equipment is state-of-the-art; it’s fast and produces excellent results.
Our newer high-field machine features a shorter, wider bore (tube) with a larger opening than prior machines. The open MRI is open on the sides, with an imaging unit above you as you recline on the table.
MedWise was the first MRI facility in the tri-city area to receive the highest award for MRI imaging: The American College of Radiology accreditation.
Special considerations
Not all patients can be examined by MRI. Our staff will carefully interview you and your referral provider to be absolutely certain an MRI examination is right for you. MRIs are not generally recommended for pregnant women.
If you are claustrophobic, it is very important that you notify MedWise right away. MedWise offers an open MRI that is suitable for most claustrophobic patients. We will consult your healthcare provider to determine if this is right for you prior to the day of your exam. You may need to receive a sedative prior to the exam, requiring you to arrive 45 to 60 minutes before your appointment.
What do
I need to do to prepare for an
MRI?
There are no special diets or medication needed before an MRI. However, because MRI uses magnets, nothing metallic is allowed in the room. This includes:
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Jewelry
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Battery-operated objects, such as hearing aids and watches
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Credit cards, bank cards, ATM cards or anything with a metallic strip
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Hairpins
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Metal zippers
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Removable dental work
Not only may these items be damaged, but they also can distort the images. Wearing clothing without metal, such as a sweatsuit, is ideal. Make sure you tell your technologist if you have a pacemaker, hip replacement or other metal in your body. Although the test is painless, some people experience a claustrophobic reaction. You can have a friend or family member accompany you, or bring your favorite music to help you relax. (No children are permitted.)
What
will the MRI be like?
Once you’ve arrived at MedWise, you will be asked to change into a hospital gown and remove all jewelry. You can request a pillow or blanket in order to make yourself more comfortable during the test.
During the test, you will be asked to stay as still as possible, as excessive movement can blur the image. Your technologist will be observing you the entire time and can speak with you via an intercom inside the machine.
Depending on the test, you may be injected with a contrasting agent. Contrast agents are simply dyes that allow the radiologist to see certain areas or organs more clearly.
What
happens after the test?
You can immediately resume normal activities unless you received a sedative. If you are sedated, you must be accompanied by a driver to escort you home.
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