Graphical diagnostics: Signals from a normal aortic valve (left) show two separated sounds while those from a defective aortic valve (right) display diamond-shaped murmurs. The sound data were used to generate complex networks (below) that can help to diagnose aortic valve stenosis. (Courtesy: M S Swapna)
Aortic stenosis, the narrowing of the aortic valve, is one of the most common and serious heart valv
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Tami Freeman
is an online editor for Physics World