Results 1 to 10 of about 24,406 (238)

A Survey of Photoplethysmography and Imaging Photoplethysmography Quality Assessment Methods

Applied Sciences, 2022
Photoplethysmography is a method to visualize the variation in blood volume within tissues with light. The signal obtained has been used for the monitoring of patients, interpretation for diagnosis or for extracting other physiological variables (e.g ...
Théo Desquins, Frédéric Bousefsaf, Alain Pruski, Choubeila Maaoui   +3 more
doaj   +2 more sources

PPGFeat: a novel MATLAB toolbox for extracting PPG fiducial points

Frontiers in Bioengineering and Biotechnology, 2023
Photoplethysmography is a non-invasive technique used for measuring several vital signs and for the identification of individuals with an increased disease risk.
Saad Abdullah, Abdelakram Hafid, Mia Folke, Maria Lindén, Annica Kristoffersson   +4 more
doaj   +1 more source

Multiclass Arrhythmia Detection and Classification From Photoplethysmography Signals Using a Deep Convolutional Neural Network

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background Studies have reported the use of photoplethysmography signals to detect atrial fibrillation; however, the use of photoplethysmography signals in classifying multiclass arrhythmias has rarely been reported.
Zengding Liu, Bin Zhou, Zhiming Jiang, Xi Chen, Ye Li, Min Tang, Fen Miao   +6 more
doaj   +1 more source

Applied machine learning for blood pressure estimation using a small, real-world electrocardiogram and photoplethysmogram dataset

Mathematical Biosciences and Engineering, 2023
Applying machine learning techniques to electrocardiography and photoplethysmography signals and their multivariate-derived waveforms is an ongoing effort to estimate non-occlusive blood pressure.
Mark Kei Fong Wong, Hao Hei, Si Zhou Lim, Eddie Yin-Kwee Ng   +3 more
doaj   +1 more source

Comparing Cardiac Output Measurements Using a Wearable, Wireless, Noninvasive Photoplethysmography-Based Device to Pulse Contour Cardiac Output in the General ICU: A Brief Report

Critical Care Explorations, 2022
OBJECTIVES:. Cardiac output (CO) measurements in the ICU are usually based on invasive techniques, which are technically complex and associated with clinical complications.
Ayana Dvir, MD, MHA, Nir Goldstein, PhD, Avigal Rapoport, MD, Ronen Gingy Balmor, MD, Dean Nachman, MD, Roei Merin, Meir Fons, Arik Ben Ishay, Arik Eisenkraft, MD, MHA   +8 more
doaj   +1 more source

Face Biometric Spoof Detection Method Using a Remote Photoplethysmography Signal

Sensors, 2022
Spoofing attacks in face recognition systems are easy because faces are always exposed. Various remote photoplethysmography-based methods to detect face spoofing have been developed. However, they are vulnerable to replay attacks.
Seung-Hyun Kim, Su-Min Jeon, Eui Chul Lee   +2 more
doaj   +1 more source

Validation of a Deep Learning Algorithm for Continuous, Real‐Time Detection of Atrial Fibrillation Using a Wrist‐Worn Device in an Ambulatory Environment

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Background Wearable devices may be useful for identification, quantification and characterization, and management of atrial fibrillation (AF). To date, consumer wrist‐worn devices for AF detection using photoplethysmography‐based algorithms perform only ...
Ming‐Zher Poh, Anthony J. Battisti, Li‐Fang Cheng, Janice Lin, Anil Patwardhan, Ganesh S. Venkataraman, Charles A. Athill, Nimesh S. Patel, Chinmay P. Patel, Christian E. Machado, Jeffrey T. Ellis, Lori A. Crosson, Yuriko Tamura, R. Scooter Plowman, Mintu P. Turakhia, Hamid Ghanbari   +15 more
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Photoplethysmographic imaging of hemodynamics and two-dimensional oximetry [PDF]

Известия Саратовского университета. Новая серия: Физика, 2022
Background and Objectives: A review of recent papers devoted to actively developing methods of photoplethysmographic imaging (PPGI) of blood volume pulsations in vessels and non-contact two-dimensional oximetry on the surface of the human body is carried
Volkov, Ivan Yu., Sagaidachnyi, Andrey Aleksandrovich, Fomin, Andrey Vladimirovich   +2 more
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Revolutionizing smartphone gyrocardiography for heart rate monitoring: overcoming clinical validation hurdles

Frontiers in Cardiovascular Medicine, 2023
Accurate heart rate (HR) measurement is crucial for optimal cardiac health, and while conventional methods such as electrocardiography and photoplethysmography are widely used for continuous daily monitoring, they may face practical limitations due to ...
Mohamed Elgendi, Wenshan Wu, Wenshan Wu, Cuntai Guan, Carlo Menon   +4 more
doaj   +1 more source

Non-invasive detection of early microvascular changes in juveniles with type 1 diabetes

Cardiovascular Diabetology, 2023
Aims/Hypothesis The study aimed to assess the usefulness of capillaroscopy and photoplethysmography in the search for early vascular anomalies in children with type 1 diabetes.
Klaudia Bogusz-Górna, Adriana Polańska, Aleksandra Dańczak-Pazdrowska, Ryszard Żaba, Marta Sumińska, Piotr Fichna, Andrzej Kędzia   +6 more
doaj   +1 more source