Study author Dweik added that the test is "theoretically cheap. But of course we're still early in the process of exploring its potential. This study is really a proof of concept. There is much more work that needs to be done to get it to the point where it would become widely available."
For more on heart failure, visit the U.S. National Heart, Lung, and Blood Institute.
Copyright © 2012 HealthDay. All rights reserved.