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Frequently Asked Questions About
Your MRI
What is MRI?
Magnetic Resonance Imaging (MRI) is a diagnostic imaging
technology that uses a strong magnet and radio frequency waves to
produce images of your internal organs.
Does MRI use x-ray?
No. There is no ionizing (x-ray) radiation used.
Why is this test important?
An MRI allows physicians to see internal organs and
structures from many angles in great detail. It provides needed
information quicker, and often more economically, than exploratory surgeries.
Will the MRI scan be painful?
No. MRI scans are non-invasive and painless. Your physician may
request the use of a contrast agent, however, to better visualize
certain structures. In this case, you will receive a simple IV
prior to or during the exam.
Will I feel anything?
No, but you might hear a loud knocking or buzzing sound at
various intervals during your exam. This is normal, however, and
should not worry you.
Is the machine open at both ends?
Yes. All MRI machines are open at both ends.
Will I be able to keep my head outside of the MRI machine?
This depends on your height and the body part being scanned. The
area to be scanned is positioned in the center of the magnet, so if
your foot is being scanned, your head will likely be outside the
machine. If your head, neck, or chest is being scanned, however, your
head will likely be inside the machine.
Will I be alone during the scan?
You will be alone in the MRI room throughout most of the
scan, but you will be able to contact the technologist at all times
via intercom. The technologist is also able to see you through a large
window between the MRI machine and the control room.
Do I have to hold still throughout the entire exam?
It is important to remain as still as possible in order to
obtain the best images. Movement during the
scan may require the technologist to repeat certain portions of your
exam.
Will I fit comfortably in the scanner?
There are very few patients who cannot be comfortably
accommodated for an MRI scan.
Is there anyone who cannot have an MRI?
You will be required to complete a health history
questionnaire before having an MRI. Some patients who have metal implants
cannot
be safely scanned by MRI. In addition, those with pacemakers,
aneurysm clips, and neurostimulators generally cannot be scanned.
Anyone with surgical pins, shrapnel, plates or metal implants should
inform the technologist prior to their exam.
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