graphic illustrating how ApneaApp works using sonar
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Display Date: 
Winter 2016

UW CSE graduate student Rajalakshmi Nandakumar demonstrates ApneaApp, a low-cost, non-invasive smartphone app for detecting sleep apnea — a potentially life-threatening condition that affects more than 25 million people in the United States alone. The app turns the smartphone into an active sonar system to track changes in a person’s breathing patterns. ApneaApp was shown to be 95 to 99 percent accurate in tracking respiratory events compared to the more costly — and much less convenient — intensive polysomnography test that is the standard method for diagnosing sleep apnea.

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Captioned MP4
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Creation Date: 
Fri, 03/04/2016