During an MRI, radio waves
and a magnetic field are combined to project a three-dimensional picture
of soft tissue, such as the disks in the vertebrae, tendons, or ligaments.
Throughout the test, you lie on a radiology table, which is then slid into
a scanning chamber. There are knocking sounds as the scanner begins taking
picture. This is normal and should not alarm you. You need to keep as still
as possible. The procedure usually takes about 25 minutes.
The MRI does not hurt, however
some people report that they feel constricted while they are inside the
chamber. If you feel this confined space may make you uncomfortable, inform
your physician's office and arrangements can be made to prescribe medications
that will make you more comfortable.