Does mri use radiation

CT Scan is the short form of Computed Tomography, also known as CAT scans. In this technique, the patients are exposed to higher radiation levels compared to most of other imaging techniques.

CT Scan technology involves the use of an X-ray generating device that rotates around the patient's body. These powerful beams are picked up by an array of detectors and used by a computer to generate a three-dimensional view of a body region.

Experts agree that when used correctly, such scans can save lives. However, according to some estimates, the radiation exposure a patient receives from a full-body CT scan is often 500 times that of a conventional X-ray and about the same as that received by people living 2.4 kilometres away from the centres of the World War II atomic blasts in Japan.

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Related URLs:

http://www.newscientist.com/article/dn11827-ct-scan-radiation-can-equal-nuclear-bomb-exposure-.html

http://www.radiologyinfo.org/en/info.cfm?PG=bodyct

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By Gipson Edappazham