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cardiothoracic ratio

cardiothoracic ratio in Medicine

cardiothoracic ratio car·di·o·tho·rac·ic ratio (kär'dē-ō-thə-rās'ĭk)
The transverse diameter of the heart, as determined by x-ray examination, compared with that of the thoracic cage, used to help determine enlargement of the heart.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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