MRI

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MRI

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Magnetic Resonance Imaging, or MRI, is a noninvasive way of imaging the internal structures of the body using magnets, radio frequency waves and powerful computers. MRI uses no x-rays or ionizing radiation. Images are created in thin slices through the body part being examined and can be done in any orientation. Any body part from the head to the toes can be imaged.

Safety First!
MRI safety is our top priority! Because the powerful magnet is ALWAYS on, all removable metal such as jewelry, watches, hairpins, and cell phones will be removed. These metal objects can become dangerous if allowed to enter the MRI suite. The magnet can also interfere with certain implanted devices as indicated below. Other metal within the body can create problems with the images. For these reasons, you will be carefully screened prior to your MRI both at the time of scheduling and prior to entering the room.

If you have any of the following, please discuss with our schedulers and technologists, as you may not be able to undergo MRI:

  • pacemakers or implantable defibrillators (there are a few pacemakers which are MRI compatible, but special precautions must still occur with these; patients with other pacemakers cannot enter the MRI suite)
    – cochlear (inner ear) implants
    – neurostimulators
    – some aneurysm clips
    – implanted medication pumps
    – catheters with metal tips
    – some medication patches

If you have the following, MRI can usually be done, although special precautions may be necessary:
– metallic spinal rods
– joint replacements
– plates and/or screws for bone repair

You will likely be asked to change into a gown. During the MRI you will be positioned on a table which is moved into an open-ended tube. Special coils that are able to send and receive the pulses used to create the images may be positioned around the body part being examined. Imaging takes between 20-45 minutes depending on the area of the body studied and the clinical situation. Motion affects the quality of the images, so it is important to hold still. You will be in view of and in constant communication with the technologist throughout the exam.

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