Knee MRI scan A knee MRI (magnetic resonance imaging) scan uses
energy from strong magnets to create pictures of the knee joint
and muscles and tissues. An MRI does not use radiation (x-rays).
Single MRI images are called slices. The images can be stored on
a computer or printed on film. One exam produces many images.
MRI - knee How the test is performed You will wear a hospital
gown or clothes without metal zippers or snaps (such as
sweatpants and a t-shirt). Certain types of metal can cause
blurry images. You will lie on a narrow table that slides into a
large tunnel-like scanner. Some exams use a special dye
(contrast). Most of the time, you will get the dye through a
vein (IV) in your arm or hand before the test. Sometimes, the
dye is given into a joint. The dye helps the radiologist see
certain areas more clearly. During the MRI, the person who
operates the machine will watch you from another room. The test
most often lasts 30-60 minutes, but may take longer. How to
prepare for the test You may be asked