Results 1 to 10 of about 25,281 (243)

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   +4 more sources

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   +3 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

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
doaj   +1 more source

Cuffless Single-Site Photoplethysmography for Blood Pressure Monitoring [PDF]

, 2020
One in three adults worldwide has hypertension, which is associated with significant morbidity and mortality. Consequently, there is a global demand for continuous and non-invasive blood pressure (BP) measurements that are convenient, easy to use, and ...
Abbott, D., Allen, J., Chan, G., Chan, W-S., Cooper, R., Elgendi, M., Fletcher, R., Hosanee, M., Howard, N., Kyriacou, P. A., Lim, K., Lovell, N. H., Menon, C., Ward, R., Welykholowa, K., Zheng, D.   +15 more
core   +3 more sources

Assessment of spatiotemporal heterogeneity of two-dimensional images on the example of photoplethysmograpic imaging of hemodynamics [PDF]

Известия Саратовского университета. Новая серия: Физика, 2023
Background and Objectives: The problem of representation of multidimensional data on a two-dimensional plane arises during the processing of a series of two-dimensional images in the spatiotemporal and time-frequency domains.
Sagaidachnyi, Andrey Aleksandrovich, Volkov, Ivan Yu., Tsoy, Maria Olegovna, Fomin, Andrey Vladimirovich, Mayskov, Dmitriy Igorevich, Antonov, Andrey Валерьевич, Zaletov, Ivan Sergeevich, Skripal, Anatoly Vladimirovich   +7 more
doaj   +1 more source

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