The smartphones in our pockets are now packed with so much computing power and such impressive cameras and displays that sometimes, they can take over for the diagnostic equipment in the doctor?s office. It?s more than just cool?in countries where it?s not easy to get to a hospital, mobile health technologies could extend the reach of quality healthcare. By Chris Sweeney
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iStethoscope
Researchers at Oxford University and South Africa?s University of Cape Town tapped into cellphones? existing microphones to develop this mobile stethoscope. The app allows patients to record their own heartbeats, and then forward along the audio to doctors who can track the development of conditions, such as tuberculosis pericarditis. A small clinical trial of 150 patients showed that a Nokia 3100 Classic could estimate patients' heart rates more accurately than a pricey electronic stethoscope, though the quality of the audio needs improvement. The team is now developing an Android application and refining its algorithm to better process the recordings. 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