Photoplethysmography News and Research

RSS

Photoplethysmography (PPG) is a simple optical technique used to detect volumetric changes in blood in peripheral circulation. It is a low cost and non-invasive method that makes measurements at the surface of the skin.

Is AI the future of personalized hypertension risk assessment, diagnosis, and treatment?

Artificial intelligence (AI) applications for treating hypertension (HTN) and its comorbidities.

16 Jan 2024

New prescription smartwatch accurately detects atrial fibrillation

As the use of wearable technology grows, smart watches are marketed across the globe to consumers as a way to monitor health.

1 Dec 2023

Smartwatches used to screen for heart rhythm disorders need more scientific evaluation

Company claims are leaping ahead of medical science in promoting the use of smartwatches to screen for heart rhythm disorders.

5 Dec 2022

Startup receives federal grant for developing technology to detect and treat stress, anxiety

A high-tech startup that uses game-based interventions to help users identify stress- and anxiety-related events in real time and receive a personalized intervention has been awarded a federal grant to partially develop its technology through research at Purdue University's College of Engineering.

28 Oct 2022

Wrist-wearable devices more cost-effective than electrocardiograms and pulse palpation for atrial fibrillation screening

Screening individuals for atrial fibrillation (AF) using wearable devices is more cost-effective than screening using conventional methods such as 12-lead electrocardiogram (ECG) and pulse palpation, or than no screening at all, researchers from Massachusetts General Hospital (MGH) have found.

8 Aug 2022

Smartwatch application can be used for atrial fibrillation screening

Atrial fibrillation (AFib) was confirmed in nearly 94% of people who were initially identified to have signs of the heart rhythm disorder by a smartwatch application and who followed up with a clinician, in a study presented at the American College of Cardiology's 71st Annual Scientific Session.

3 Apr 2022

Researchers customize finger clip device to provide a noninvasive way for measuring blood pressure

Monitoring a person's blood pressure on a regular basis can help health care professionals with early detection of various health problems such as high blood pressure, which has no warning signs or symptoms.

4 Jan 2022

Resting heart rate variability predicts emotional resilience during COVID-19 restrictions

An interesting new study available as a preprint on the medRxiv* server suggests that vagally-mediated heart rate variability (vmHRV) is a physiological marker of resilience to stress by indicating how well an individual handles the emotions when faced with changes in the surroundings.

28 Jun 2021

Smartphones could help manage chronic cardiopulmonary disease, predict next pandemic

Photoplethysmography (PPG) is a simple optical technique used to detect volumetric changes in peripheral blood circulation. It's used in smart watches, for example, to monitor pulse and heart rate, but PPG biosensors are also found in millions of smartphones, but without any current clinical applications.

10 Feb 2021

Smartphones could be used to detect Type 2 diabetes

Researchers at UC San Francisco have developed a "digital biomarker" that would use a smartphone's built-in camera to detect Type 2 diabetes - one of the world's top causes of disease and death - potentially providing a low-cost, in-home alternative to blood draws and clinic-based screening tools.

17 Aug 2020

Mobile health devices effective in reducing AF-related adverse events, study finds

A new study, published in the Journal of the American College of Cardiology, highlights the feasible use of mobile health (mHealth) devices to help with the screening and detection of a common heart condition.

31 Mar 2020

Mobile apps improve atrial fibrillation detection rates in a low-risk population

A new study has shown that mobile health (mHealth) devices are able to screen for the common cardiac disorder called atrial fibrillation (AF).

8 Sep 2019

Mobile health devices for screening and detection of common heart condition

A new study, presented as 'Late Breaking Science' at the European Society of Cardiology annual congress and published in the Journal of the American College of Cardiology, highlights the feasible use of mobile health (mHealth) devices to help with the screening and detection of a common heart condition.

6 Sep 2019

Researchers propose new contactless method for measuring blood flow in the upper limbs

The research team from Russia proposed a new contactless method for measuring blood flow in the upper limbs. The method is based on video recording of the skin surface under green light measuring the absorption of red blood cells. This helps to see how effective the circulatory system and the blood flow regulation are.

29 Oct 2018

Scientists find alterations in blood flow in response to body position change

For the first time ever, an international research group detected alterations in capillary blood flow around the face caused by body position change.

18 Sep 2018

New smartphone app can help detect atrial fibrillation

A smartphone application can help in screening for atrial fibrillation, according to late breaking results from the DIGITAL-AF study presented at ESC Congress.

28 Aug 2018

Researchers study what blushing reveals about emotional states of narcissistic children

Narcissistic children blush when they do not receive the praise they think they deserve. They feel depreciated but are unwilling to admit this feeling to others, perhaps to hide their vulnerabilities.

7 Jun 2018

Study validates accuracy of smart watches in measuring rapid heart rate

A new study is the first to validate the accuracy of wrist-worn wearable devices in measuring induced paroxysmal supraventricular tachycardia (PSVT), or episodes of rapid heart rate.

11 May 2018

Researchers develop new method to more accurately measure systolic blood pressure

An estimated 1 in 3 U.S. adults have high blood pressure. Blood pressure levels are often assessed by using automatic blood pressure devices.

14 Aug 2017

Study finds substantial differences in accuracy of heart rate apps

Consumers are being warned about the accuracy of heart rate apps after a study found huge variability between commercially available apps, even those using the same technology. The research is published today in the European Journal of Preventive Cardiology.

3 May 2017