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The oxygen level in the blood can be detected by placing a finger on your smartphone’s camera or flash

A team of US researchers has found that smartphones are capable of detecting blood oxygen saturation levels of up to 70 percent – ​​the lowest value a pulse oximeter should be able to measure.

A team of US researchers has found that smartphones are capable of detecting blood oxygen saturation levels of up to 70 percent – ​​the lowest value a pulse oximeter should be able to measure.

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New York:A team of US researchers has found that smartphones are capable of detecting blood oxygen saturation levels of up to 70 percent – ​​the lowest value a pulse oximeter should be able to measure.

In proof-of-principle research by researchers from the University of Washington (UW) and the University of California San Diego, participants placed their finger on the flash of a camera and smartphone, which uses a deep-learning algorithm to sense blood oxygen levels. uses.

When the team gave six subjects a controlled mixture of nitrogen and oxygen to artificially bring down their blood oxygen levels, the smartphone correctly predicted whether the subject had an 80 percent lower blood oxygen level.

“Other smartphone apps that do this were developed by asking people to hold their breath. But people become very uncomfortable and have to breathe out after a minute or so, and before their blood-oxygen levels are full. The series may have gone down well enough to represent clinically relevant data,” said co-lead author Jason Hoffman of the University of Washington.

“With our test, we are able to collect 15 minutes of data from each subject,” Hoffman said in the study, published in NPJ Digital Medicine. Our data shows that smartphones can function well in the critical range range. “

Another benefit of measuring blood oxygen levels on a smartphone is that almost everyone has one.

“That way you can get multiple measurements with your device at no or little cost,” said co-author Dr. Matthew Thompson, a professor of family medicine at the UW School of Medicine.

It would be really beneficial to have telemedicine appointments to determine quickly whether patients need to go to the emergency department or if they can continue to rest at home and make an appointment with their primary care provider afterward. Huh.

To collect data to train and test the algorithm, the researchers had each participant wear a standard pulse oximeter on one finger and then placed the other finger on the smartphone’s camera and flash on the same hand.

The researchers used the participants’ data to train a deep learning algorithm to work out blood oxygen levels. The remaining data was used to validate the method and then tested to see how well it performed on new subjects.

“The camera records how much blood absorbs light from the flash in each of the three color channels: red, green and blue,” said senior author Edward Wang, an assistant professor at UC San Diego.

The team hopes to continue this research by testing the algorithm on more people.

Disclaimer: This story has been published from a newswire service and has been changed by Times Now to nothing but the headline.

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