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Magnetic Resonance Imaging (MRI) is an advanced diagnostic procedure
that produces highly detailed three-dimensional images of internal
body structures without the use of X-rays or any other form of radiation.
MR images are produced through the use of a large and powerful magnet,
harmless radiowaves and a computer. The patient lies inside a strong
magnetic field. Radio waves are then sent through the body. This
affects the body's atoms, forcing the nuclei into a different position.
As they move back into place they send out radio waves of their
own. The scanner picks up these signals and a computer turns them
into a picture. These pictures are based on the location and strength
of the incoming signals. Our body consists mainly of water, and
water contains hydrogen atoms. For this reason, the nucleus of the
hydrogen atom is often used to create an MRI scan in the manner
described above.
Today, with stronger magnetic fields and more advanced scanners,
MRI can be used to diagnose a wide range of conditions, ranging
from fractures that appear invisible on normal X-rays to damaged
sections of heart tissue as well as parts of the brain, liver, kidney
and other organs. At Central Georgia Diagnostics Northwest, we
are fortunate to be among the few imaging and diagnostics centers
in the state to use a new stronger field 1.5 Tesla scanner.
Because of its wider range of use, this new advanced MRI has proven
to be an important diagnostic tool for the physician.
Since MRI uses a strong magnet, you will be asked to wear metal-free
clothing. You also will be asked to remove any metallic objects,
such as jewelry, watches, and hair clips. Be sure to Inform your
technologist of prior surgeries or metal implants such as pacemakers
or aneurysm clips. It is also important for the patient to inform
medical staff if they use electrical appliances, such as a hearing
aid or pacemaker, or have any metal in their body such as surgical
clips (orthopaedic prosthetics such as artificial hips or bone screws
are not normally a problem). Also, if you are pregnant please let
your doctor or MRI technologist know prior to the exam.
For your exam, the technologist will position you on a table that
will slide into the scanner. If needed, your doctor will administer
medication to help you relax during the exam. During your exam the
MRI technologist will maintain constant communication with you.
While the scanner is taking pictures, you will hear humming and
a knocking sound. During this part of the exam, you should hold
as still as possible to ensure the scanner gets a sharp picture.
An
experienced board certified radiologist at Central Georgia Diagnostics
will read the tests and promptly send the report to your doctor.
approximately 20-45 minutes
As always, please let your doctor or the MRI technologist know
of any concerns or questions you may have prior to this exam. It
is our goal to ensure you have an accurate and comfortable exam.
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