Monitoring blood pressure might one day become as easy as taking a video selfie, claims recent research. Transdermal optical imaging measures blood pressure by detecting blood flow changes in smartphone-captured facial videos. Ambient light penetrates the skin's outer layer allowing digital optical sensors in smartphones to visualize and extract blood flow patterns, which transdermal optical imaging models can use to predict blood pressure. The study was published in the journal 'Circulation: Cardiovascular Imaging.' "High blood pressure is a major contributor to cardiovascular disease -- a leading cause of death and disability.
To manage and prevent it, regular monitoring of one's blood pressure is essential," said Kang Lee, study's lead author. "Cuff-based blood pressure measuring devices, while highly accurate, are inconvenient and uncomfortable. Users tend not to follow American…
