A study led by University of Toronto researchers, published today in the American Heart Association journal Circulation: Cardiovascular Imaging, found that blood pressure can be measured accurately by taking a quick video selfie.
Kang Lee, a professor of applied psychology and human development at the Ontario Institute for Studies in Education and Canada Research Chair in developmental neuroscience, was the lead author of the study, working alongside researchers from the Faculty of Medicine’s department of physiology, and from Hangzhou Normal University and Zhejiang Normal University in China.
Using a technology co-discovered by Lee and his postdoctoral researcher Paul Zheng called transdermal optical imaging, researchers measured the blood pressure of 1,328 Canadian and Chinese adults by capturing two-minute videos of their faces on an iPhone. Results were compared to standard devices used to measure blood pressure.
The researchers found they were able to measure three types of blood pressure with 95 to 96 per cent accuracy.
“Blood pressure is among the key health indexes that we use to measure your health,” says Lee.