Normal aortic valve (left) versus defective aortic valve (right) and their different sound signals (purple) (IMAGE)

American Institute of Physics

Normal aortic valve (left) versus defective aortic valve (right) and their different sound signals (purple)

Caption

A normal aortic valve (left) versus a defective aortic valve (right) and their different sound signals (purple). The sound data was used to generate graphs at the bottom corners, which differ greatly and can help diagnose aortic valve stenosis.

Credit

M.S. Swapna

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