happens when the test is performed?
- The MRI is a large machine with a circular tunnel built through
it, like the hole of a donut. You lie on your back on a narrow
table that can be moved back and forth into the tunnel.When MRI
scans are taken, expect to hear some loud noises from the machine.
Some MRI departments offer earplugs or a stereo headset to block
this noise. A technician moves your table using an automatic
control.When each picture is taken, he or she asks you to hold
your breath for a few seconds. If you need to have dye injected
through the IV, this is usually done halfway through the scanning.
An MRI typically takes 30-90 minutes. It can be difficult if
you are uneasy in tight spaces or have trouble lying flat for
that amount of time. If you think you might have trouble getting
through the procedure, talk to your doctor beforehand and discuss
whether an anti-anxiety medicine might help. After the test is
done, you can go about your normal activities.