Researchers are testing apps that use a phone’s camera and microphone to screen for common heart conditions. Placing a fingertip on the camera for thirty seconds is enough to measure pulse and detect an irregular rhythm.
In early trials the apps matched clinical devices in most cases, which could make basic screening available to millions of people who rarely see a doctor.
The teams stress that the tools are meant to flag problems early, not replace medical care. Regulators are expected to review the first apps next year.
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