Cardiothoracic ratio: Difference between revisions
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The cardiothoracic ratio is the calculated by measuring the [[transverse diameter]] of the [[heart]] on a posterior / anterior chest X ray [[x-ray]] examination and dividing it by the diameter of the [[thoracic cage]]. A value > 0.5 or one half is consistent with enlargement of the heart or [[cardiomegaly]]."<ref>http://medical-dictionary.thefreedictionary.com/cardiothoracic+ratio</ref> | The cardiothoracic ratio is the calculated by measuring the [[transverse diameter]] of the [[heart]] on a posterior / anterior chest X ray [[x-ray]] examination and dividing it by the diameter of the [[thoracic cage]]. A value > 0.5 or one half is consistent with enlargement of the heart or [[cardiomegaly]]."<ref>http://medical-dictionary.thefreedictionary.com/cardiothoracic+ratio</ref> | ||
== Example Of An Enlarged Cardiothoracic Ratio== | |||
Shown below is an example of an enlarged cardiothoracic ratio with a ratio exceeding 0.5: | |||
[[File:Cardiothoracic ratio.JPG|center|500px]] | |||
==References== | ==References== | ||
{{reflist|2}} | {{reflist|2}} | ||
Revision as of 19:33, 20 October 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
The cardiothoracic ratio is the calculated by measuring the transverse diameter of the heart on a posterior / anterior chest X ray x-ray examination and dividing it by the diameter of the thoracic cage. A value > 0.5 or one half is consistent with enlargement of the heart or cardiomegaly."[1]
Example Of An Enlarged Cardiothoracic Ratio
Shown below is an example of an enlarged cardiothoracic ratio with a ratio exceeding 0.5:
