1 July 2009
An MRI scan is a is a painless and safe diagnostic test that uses magnetism, radio waves, and a computer to make pictures of organs and structures inside the body, without the use of X-rays or other radiation.
The traditional MRI unit is a large cylinder-shaped tube surrounded by a circular magnet with a moveable examination table that slides into the center of the magnet.
A computer converts signals from the MRI scan into clear, cross-sectional images of the part of the body that has been scanned.
Each image is a slice of the body area scanned, and numerous images are created that clearly show all the features of that particular part of the body.
An MRI allows physicians to better evaluate parts of the body and certain diseases that may not be assessed adequately with other imaging methods.