What is magnetic resonance imaging?

Simply put, magnetic resonance imaging
or MRI is highly advanced technology
that enables physicians to look into your
body. It uses magnets, radio waves, and
computers to create extremely detailed
pictures or "images" of your internal
organs and structures.

Because MRI produces images from
any angle with great clarity, it provides
a wealth of diagnostic information more
quickly and easily than many other tests
and exploratory surgery.

What can I expect during my MRI exam?

The person who will administer your
exam is called an MRI technologist. She
or he will help you lie down comfortably
on the padded table. As your exam begins, this table will move into the wide opening in the MRI system. Try to remain as still as possible during the exam to ensure the clearest images.

The MRI exam itself is painless - you
won't feel a thing. You may notice a
slight knocking noise as each image is
taken, however, so let your technologist
know if you are particularly sensitive
to sound.

As with any exam, the hardest part is
to be patient. Just relax and remain
still. The MRI staff will keep you informed
every step of the way. Remember, they
are there to assist you. Should you
become uncomfortable, need help, or
have questions at any point during your
exam, just say so. There is a built-in
intercom in the system so you can talk
with the staff.

The length of your exam depends
on the type of study your doctor has
ordered. In many cases, MRI patients
are done and on their way home within
an hour.

After your exam, the technologist will
take you back to the preparation room
to collect your things. That's all there
is to it.

How do I prepare for my MRI exam?

Good news - no special preparation is
needed. Eat and take any prescribed
medication as usual, unless your doctor
tells you otherwise.

One important thing to remember,
though: MRI and metal do not mix.
An MRI system has a powerful magnet
inside, which is why you need to follow
these guidelines:

Tell your physician and the MRI staff
if you have a pacemaker, prosthesis,
surgical clips, metal implants, or any
other metal objects in your body. Some
implants, such as a pacemaker, may be
affected by an MRI exam.

Leave metal or magnetized objects
at home or give them to the MRI
staff for safekeeping when you arrive
for the exam. Items that might be
affected by the magnet include watches,
coins, keys, bobby pins or other hair
clips, pocketknives, and credit cards.

Avoid wearing eye makeup because
metal flakes or slivers are found in some
eye shadows.

Let the technologist know if you work
around metal finishing or grinding equipment.
It's important to keep the eye
area free of any metallic particles.

Finally, if you have additional questions or
want more information before your exam,
please don't hesitate to contact your
physician or the staff of the MRI facility.