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Magnetic Resonance Imaging
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What is MRI?
MRI stands for Magnetic Resonance
Imaging. It is a
test that produces very clear images of the human body without the use of
x-rays. Instead, MRI uses a large magnet, radio wavers and a
computer to produce these images. A versatile and powerful tool, MRI
can generate thin-section images of any body part and can be taken from
any angle and direction, within a relatively short period of time.
Most MRI exams performed at Southeastern Med last between 20 to 45 minutes
as compared to 60 to 90 minute scan times of most other scanners.
MRI is generally used to image the brain, spine, and orthopedic or joint
studies. The MRI unit in our facility is also used to image blood
flowing in virtually any part of the body. Physicians can use this
information to map the arterial system in the body and locate areas with
little or no flow. This information is vital for stroke prevention
and diagnosis of vascular disease.
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How safe is
MRI?
MRI is quite safe, certain persons may not be able to have an MRI
performed due to certain basic restrictions that must be observed.
The MRI utilizes a very strong magnet. The MRI at Southeastern Med
is a GE 1.5 Tesla unit®. Persons with Cardiac
Pacemakers must never have an MRI, even if the pacemaker is
non-functioning.
Other types of implants that are not advised to go
into a strong magnet field are Brain Aneurysm Clips and Cochlear (inner
ear) implants. People with pieces or fragments of metal close to or
in such body parts as the eye may not be able to have an MRI
performed. You will be given a question & answer sheet to
complete that asks you if you have these devices and other objects that
may interfere with or prevent you from having an MRI safely. We also
interview everyone along with this checklist to insure your safety as well
as deciding the proper way to approach your particular symptoms.
This is also an opportunity for us to alleviate any fears or concerns you
may have.
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What will I experience?
You will be lying on a special table that moves you into the
center of the magnet. Prior to going into the magnet, you will be
offered earplugs to reduce the noise associated with MRI
examinations. Loud "hammering" and "buzzing"
noises will be heard throughout the study. These noises are a
natural part of all MRI machines and produce the radio waves in the
magnetic field that aid in the creation of the final images. It is
very important that you remain still while the noises are heard. The
slightest but of movement can affect picture quality. The table
may slightly adjust between sets of scan and is normal. Depending on
the type of study and/or what your physician is looking for, you may be
given a small amount of fluid in a vein to highlight certain structures.
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Is this a "closed" MRI?
Frankly, there is no such thing as a "closed" MRI.
The MRI unit is a tube open on both ends. The new scanner has more room than
before offering a light on the inside of the tube as well as a fan
to keep air moving through the scanner, helping
you relax during your exam. A two-way speaker
system is on at all times and the MRI technologists will be in
constant contact to make sure you are comfortable and informed as to how
long each set of scans will take. You are never left alone during
your exam!
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Contact Information
Any questions you may have can be answered by calling us at
740
439-8040. If we are not available at the time you call, leave a
message on the voice mail and we will return your call as soon as
possible. The MRI department is located within the Diagnostic
Imaging department on the ground floor at Southeastern Med. We look
forward to serving your needs. Thank you!
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MRI testing
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