Monday, July 6, 2020
Home Life Style Health & Fitness Transdermal Optical Imaging Measures Blood Pressure in Smartphone-Captured Facial Videos

Transdermal Optical Imaging Measures Blood Pressure in Smartphone-Captured Facial Videos

Ambient light penetrates the skin's outer layer allowing digital optical sensors in smartphones to visualise and extract blood flow patterns

In good news for people who have blood pressure (BP) problems, monitoring BP might one day become as easy as taking a video selfie.

Researchers, including one of an Indian-origin, have tested a technology called transdermal optical imaging that measures blood pressure by detecting blood flow changes in smartphone-captured facial videos.

“This study shows that facial video can contain some information about systolic blood pressure,” said Indian-origin researcher Ramakrishna Mukkamala, Professor at the Michigan State University.

Ambient light penetrates the skin’s outer layer allowing digital optical sensors in smartphones to visualise and extract blood flow patterns, which transdermal optical imaging models can use to predict blood pressure.

Transdermal, Optical Imaging, Blood Pressure
In good news for people who have blood pressure (BP) problems, monitoring BP might one day become as easy as taking a video selfie. Pixabay

“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 study lead author Kang Lee, Professor at the University of Toronto in Canada.

“Cuff-based blood pressure measuring devices, while highly accurate, are inconvenient and uncomfortable. Users tend not to follow American Heart Association guidelines and device manufacturers’ suggestion to take multiple measurements each time,” Lee said.

For the study, published in the journal Circulation: Cardiovascular Imaging, the research team measured the blood flow of 1,328 Canadian and Chinese adults by capturing two-minute videos using an iPhone equipped with transdermal optical imaging software.

The researchers compared systolic, diastolic and pulse pressure measurements captured from smartphone videos to blood pressure readings using a traditional cuff-based continuous blood pressure measurement device.

Also Read- Sri Lanka to Ban Coloured Plastic Water Bottles and Wrappers

The researchers used the data to teach the technology how to accurately determine blood pressure and pulse from facial blood flow patterns.

They found that on average, transdermal optical imaging predicted systolic blood pressure with nearly 95 per cent accuracy and diastolic blood pressure with pulse pressure at nearly 96 per cent accuracy.

The technology’s high accuracy is within international standards for devices used to measure blood pressure, according to Lee.

Transdermal, Optical Imaging, Blood Pressure
Researchers, including one of an Indian-origin, have tested a technology called transdermal optical imaging that measures blood pressure by detecting blood flow changes in smartphone-captured facial videos. Pixabay

Researchers videoed faces in a well-controlled environment with fixed lighting, so it is unclear whether the technology can accurately measure blood pressure in less controlled environments, including homes.

Also Read- Google to Neutralise Carbon Emission for Device Shipments by 2020

Also, while the study participants had a variety of skin tones, the sample lacked subjects with either extremely dark or fair skin. (IANS)

STAY CONNECTED

18,995FansLike
362FollowersFollow
1,780FollowersFollow

Most Popular

Infant Sleep issues Linked To Mental Health Problems in Adults

Researchers have found that sleeping problems in early childhood may be linked to the development of certain mental health disorders in adolescence. The study, published...

10,000 Bed Sardar Patel Covid-19 Centre To set up at Delhi

The 10,000-bed Sardar Patel Covid-19 Care Centre and Hospital, inaugurated here on Sunday by Delhi Lieutenant-Governor Anil Baijal, which will serve as a major...

UP Government to Set World Record in Tree Plantation Drive

The Yogi Adityanath government is all set to set a new world record by planting 25 crore trees on Sunday in a massive plantation...

Queer Representation in Bollywood

Soon, Akshay Kumar will be seen essaying the role of a transgender in "Laxmmi Bomb". Sonam Kapoor has explored the complexities of being a...

WHO Stops Hydroxychloroquine, HIV drugs in Covid-19 trials

The World Health Organization (WHO) said on Saturday that it was discontinuing its trials of the malaria drug hydroxychloroquine and combination HIV drug lopinavir/ritonavir...

Coronavirus Cases Sets Record Daily Jump : WHO

The world saw a record 24-hour increase in the number of coronavirus cases Saturday — 212,326, the World Health Organization (WHO) reported. The United States,...

India Confident of Covid Vaccine, Trial Stage Marks ‘Beginning of the End’

As India races to bring a vaccine for Covid-19 by mid August, the government on Sunday said that it is entering the human trial...

Malaika Arora Shares Home Remedy to Boost Immunity

Dancing diva Malaika Arora has shared a "make in India" home remedy to boost immunity. Some people have started stepping out for work, but relaxed...

Recent Comments