Magnetic resonance imaging
Brief Description – Magnetic resonance imaging (MRI) uses a large magnet and radio waves to look at organs and structures inside your body.
Why the Test is Performed
Doctors use Magnetic Resonance Imaging (MRI) scans to diagnose a variety of conditions, from torn ligaments to tumours. MRIs are very useful for examining the brain and spinal cord.
How the Test is Performed
During the scan, you lie on a table that slides inside a tunnel-shaped machine. Doing the scan can take a long time, and you must stay still. The scan is painless. The MRI machine makes a lot of noise. The technician may offer you earplugs.
How to Prepare For the Test
Before you get a scan, tell your doctors if you:
- Are pregnant
- Have pieces of metal in your body. You might have metal in your body if you have a shrapnel or bullet injury or if you are a welder.
- Have metal or electronic devices in your body, such as a cardiac pacemaker or a metal artificial joint.During the TestYou should stay as calm and still as possible during the procedure so the images will not be blurry. Ear plugs will be provided so the noise will not cause discomfort or irritation to you.
After the Test
The test does not usually affect any of your routines.
There is no risk as long as you don’t have any solid metal inside you.