Sign Up Now For HEALTHbeat Our FREE E-mail Newsletter Sign up for our FREE email newsletter and receive a FREE report, Living to 100: What's the secret? You'll receive weekly briefings with health information you can trust from the doctors at Harvard Medical School. [ Close Window ]

• Harvard Health Publications • Order the Book • Contact Us

Sign up for our free e-mail newsletter, HEALTHbeat.   Email address:     Incontinence Weight Loss Prostate Disease Vitamins and Minerals Aching Hands See All Titles Common Medical Conditions Wellness & Prevention Emotional Well Being & Mental Health Women’s Health Men’s Health Heart & Circulatory Health   contact us		What is the test? MRI is a noninvasive technique for visualizing many different body tissues. Unlike x-rays, MRI does not use any radiation. Instead, it uses radio waves, a large magnet, and a computer to create images.As with a CT scan (see page 23), which does use x-rays, each MRI picture shows a different "slice," or cross-section, of the area being viewed. Because these slices usually are spaced about a quarter-inch apart, your doctor can get a detailed representation of a particular area. An MRI of the spine reveals any abnormalities in the vertebrae, vertebral discs, nerves, spinal cord, and muscles.
		Would you like to:
		©2000–2006 President & Fellows of Harvard College

Close window