The cardiothoracic ratio aids in the detection of cardiomegaly, or more broadly, enlargement of the cardiac silhouette. It is measured on a PA chest x-ray, and is the ratio of:
Disability around the World: It's estimated that more than 1 billion people live with a disability. (United Nations, 2013) This represents the worldâs largest minority, and the only minority group that any of us can become a member of at any time.
Juan Monino/iStockphoto.com. Fifteen percent of American children have a developmental disability, including autism and ADHD, according to a new report from the federal Centers for Disease Control and Prevention. That's an increase of almost 2 percentage points from 1997 to 2008, or almost 2 million kids.