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MRI
MRI is one of the most significant advances
in medical imaging. It allows
physicians to see inside the human body
with remarkable detail. MRI does not use
X-rays to create images. Instead, it combines
magnetic fields with radio waves and uses
specially designed computers to produce
detailed images of internal body structures.
While X-rays may be best for showing bones,
doctors use MRI to examine "soft" tissue such
as muscle, nerves, cartilage, ligaments,
tendons, vertebral discs, and various
internal organs.
What happens during MRI?
Although MRI is an advanced medical technique,
the
exam itself is relatively easy and comfortable
for most people. You will be asked to lie on a
cushioned table. A device called an imaging coil
will be placed over or under you. When you are
comfortably positioned, the table will move into
the magnet.
From the control area, the technologist will
stay in constant contact with you, both visually
and through an intercom.
As the exam begins you will hear a variety of
muffled thumping or clicking sounds. These
sounds are normal during the exam and should
not be cause for concern. Other than the
muted sounds you will hear, MRI produces
no bodily sensations.
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