MRI stands for Magnetic Resonance Imaging, the latest and most advanced type of diagnostic scanning. MRI forms "images," or pictures, of the internal structures of the body.

MRI uses radio waves, a powerful electromagnet and a computer to view the soft tissue of the body. MRI is capable of diagnosis and assessment of many diseases earlier than other diagnostic techniques.

You may already be familiar with CT scanning, which uses X-rays to study tissues. MRI uses a similar computerized process, but introduces a technology that images your body organs and chemistry without radiation.

What can I expect during an MRI examination?

MRI causes no pain but some patients can find it uncomfortable to remain still during the examination. Others experience a sense of being "closed in," though the more open construction of newer MRI systems has done much to reduce that reaction. You may notice a warm feeling in the area under examination; this is normal but if it bothers you the radiologist or technologist should be notified.

If a contrast injection is needed, there may be discomfort at the injection site and you may have a cool sensation at the site during the injection. Most bothersome to many patients are the loud tapping or knocking noises heard at certain phases of imaging. Ear plugs may help.

 How long will my MRI take?

Most MRI scans are finished within 30-45 minutes … depending upon the study being performed. Call your Medical Imaging Center for an estimate of how long your wait may be.

More FAQs on MRI