New tech calculates blood pressure via a selfie video

New tech calculates blood pressure via a selfie video

Selfie videos that can capture blood flow beneath the skin on the face might someday help monitor patients' blood pressure, researchers wrote in a new study published this week in the American Heart Association journal "Circulation: Cardiovascular Imaging". These patterns are used to predict blood pressure.

By scanning for the density and motion of blood in the cheeks, nose and forehead, scientists say they can work out blood pressure with 96 per cent accuracy. The report also pointed out that many people are not aware that they are suffering from high blood pressure.

To complete the study, researchers used iPhones loaded with transdermal optical imaging software and recorded two-minute videos of more than 1,000 Chinese and Canadian adults who had normal blood pressure - and then compared systolic, diastolic and pulse pressure measurements from the videos with readings taken using the cuff-based tool familiar from doctors' offices. Developmental psychologist and lead author of the paper Kang Lee told the Quartz that blood pressure readings can be measured through the light emitted by a phone camera. This time, measuring the blood pressure comes easy as posting a selfie on social media. "Once you know how blood concentration changes in different parts of your face, then we can learn a lot of things about your physiology, such as your heart rate, your stress and your blood pressure", said Lee.

The discovery was a result of an accident, Lee was trying to use transdermal optic imaging to develop a way of telling when kids are lying by correlating blood flow to areas of the face with fibbing. Through this method, specially designed technology processes imperceptible facial blood flow changes taken from videos captured using a smartphone camera (where red light is reflected from hemoglobin located from under the skin).

With this technology, people can have a much cheaper and faster way to track their blood pressure and it could potentially down the number of deaths. The researchers want to make the system work with normal home lighting and to cut short the time needed for the recording to 30 seconds.

"Smartphones are really smart", Lee said.

They added that, if tests of the "exciting" technique continue to be successful, "obtaining blood pressure information with a click of a camera may become reality".

"This study shows that facial video can contain some information about systolic blood pressure", Ramakrishna Mukkamala, a Michigan State University professor and Circulation Imaging editorial author, said in a statement.

Statements and conclusions of study authors published in American Heart Association scientific journals are exclusively those of the study authors and do not necessarily reflect the association's policy or position.



Related Posts

Tesla Under U.S. Scrutiny Over Safety Claims
An FTC spokesman said only that "investigations are non-public, and we don't comment on ... the existence of an investigation". In a vehicle-to-vehicle crash, the occupant of the heavier vehicle is less likely to be injured .

United States delays Huawei licenses as China halts farm purchases
The dollar index, which measures the greenback versus a basket of six major currencies, was little changed at 97.566. West Texas Intermediate (WTI) crude eased 0.1% to $52.50.

Olly Stone: Warwickshire's England fast bowler sidelined by reoccurrence of back injury
England captain Joe Root insists that Anderson "passed every fitness test" before aggravating his calf problem in the opening session of the first Test.

Arthur disappointed and hurt
Shoaib Malik and Mohammad Hafeez have been dropped from the PCB's annual central-contracts list for the 2019-2020 season. He was keen to continue, and ESPNcricinfo understands that he asked for two more years at the job.

TBI searching for "extremely dangerous" escapee
Since 2013, Watson has been serving a 15 year sentence for the conviction of especially aggravated kidnapping out of Henry County. The TBI has released new photos of Curtis Watson taken from prison cameras just before he escaped on Wednesday.

Facebook just sued these developers
Facebook has stated that both the companies have hosted malware-infected apps that faked clicks of the users. The companies also violated a federal and state law against fraud, according to the lawsuit.

Saudis to suppress oil supply in September to stabilize market
Saudi Energy Minister Khalid al-Falih insisted at OPEC's last meeting in July that the kingdom had already cut "deep enough". Even if the Saudis and others in the OPEC+ cartel decide to cut output further, they may struggle to revive prices.

Pokémon Sword & Shield: 10 Galarian Forms We Need To See
The game will be available on Nintendo Switch . " Galarian Weezing is Poison/Fairy Type, stands at 9'10", and weighs 35.3 lbs. Morpeko will change Form after each and every turn, going between its Full Belly Mode and its Hangry Mode.

Yankees, White Sox to play game at Iowa's 'Field of Dreams'
Part of the Iowa ballpark design, including the outfield, will pay homage to Comiskey Park, the former home of the White Sox . In this October 2, 2014, file photo, teams play at the " Field of Dreams " during a fall tournament in Dyersville, Iowa.

Why Some People Are Boycotting Equinox
Equinox and SoulCycle have distanced themselves from Stephen Ross , but that has not stopped members from cancelling memberships. The Related Companies owns Equinox Fitness health clubs, along with SoulCycle, PURE Yoga, Blink Fitness, and The Yorkville Club.

© 2015 ExpressNewsline. All Rights reserved.