Results 41 to 50 of about 24,406 (238)

CLINICAL PERSPECTIVES ON PHOTOPLETHYSMOGRAPHY IN IDENTIFYING THE RISK OF DEVELOPING CARDIOVASCULAR DISEASES

Актуальные проблемы теоретической и клинической медицины
Introduction. This literature review focuses on modern methods for assessing cardiovascular risk using photoplethysmography and heart rate variability.
B. А. Bugibayeva, А. S. Abzaliyeva, B. К. Abzaliyev, М. Т. Abdirova, U. М. Suleimenova, A. M. Datkabayeva   +5 more
doaj   +1 more source

Contact Surface Area: A Novel Signal for Heart Rate Estimation in Smartphone Videos

, 2019
We consider the problem of smartphone video-based heart rate estimation, which typically relies on measuring the green color intensity of the user's skin.
Fridovich-Keil, Sara, Ramadge, Peter J.
core   +1 more source

Cuff-Less Methods for Blood Pressure Telemonitoring. [PDF]

, 2019
Blood pressure telemonitoring (BPT) is a telemedicine strategy that uses a patient\u27s self-measured blood pressure (BP) and transmits this information to healthcare providers, typically over the internet.
Bard, Dylan M., Joseph, Jeffrey I., van Helmond, Noud   +2 more
core   +2 more sources

Hydrocolloid‐Based Multiwavelength Stretchable QD‐OLED Patch for Simultaneous Neonatal Jaundice and Dermatitis Treatment with Biosignal Monitoring

Advanced Healthcare Materials, EarlyView.
Comparison of therapeutic and diagnostic applications of a surface‐emitting light source with multiwavelength emission characteristics. Abstract Conventional light‐emitting‐diode‐based light sources suffer from rigidity, localized heating, and poor adaptability to skin deformation, limiting their use in skin‐attached medical devices.
In Ho Kim, Young Woo Kim, Jae‐Young Jeong, Ye Ji Shin, Chaeyeong Lee, Jae Gyun Choi, Oh Kwan Kwon, Kyoung Hwa Kim, Sang Jik Kwon, Eou‐Sik Cho, Yongmin Jeon   +10 more
wiley   +1 more source

Effects of Missing Data on Heart Rate Variability Measured From A Smartwatch: Exploratory Observational Study

JMIR Formative Research
BackgroundMeasuring heart rate variability (HRV) through wearable photoplethysmography sensors from smartwatches is gaining popularity for monitoring many health conditions.
Hope Davis-Wilson, Meghan Hegarty-Craver, Pooja Gaur, Matthew Boyce, Jonathan R Holt, Edward Preble, Randall Eckhoff, Lei Li, Howard Walls, David Dausch, Dorota Temple   +10 more
doaj   +1 more source

Blood Pressure Variability in Clinical Practice: Past, Present and the Future

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Recent advances in wearable technology through convenient and cuffless systems will enable continuous, noninvasive monitoring of blood pressure (BP), heart rate, and heart rhythm on both longitudinal 24‐hour measurement scales and high‐frequency beat‐to ...
Abu Baker Sheikh, Paul A. Sobotka, Ishan Garg, Jessilyn P. Dunn, Abdul Mannan Khan Minhas, Md Mobashir Hasan Shandhi, Jeroen Molinger, Barry J. McDonnell, Marat Fudim   +8 more
doaj   +1 more source

Photoplethysmography-Based Heart Rate Monitoring in Physical Activities via Joint Sparse Spectrum Reconstruction

, 2015
Goal: A new method for heart rate monitoring using photoplethysmography (PPG) during physical activities is proposed. Methods: It jointly estimates spectra of PPG signals and simultaneous acceleration signals, utilizing the multiple measurement vector ...
Zhang, Zhilin
core   +1 more source

An assessment of pulse transit time for detecting heavy blood loss during surgical operation [PDF]

, 2012
Copyright @ Wang et al.; Licensee Bentham Open. This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non ...
Anderson ID, Babchenko A, Cabazan-Carraze F, Chan GS, Cheng-Wei Lu, Chien-Hao Wang, Christov II, Dutch J, Gruen RL, Jiann-Shing Shieh, Maysam F Abbod, Middleton PM, Middleton PM, Nitzan M, Obrist PA, Payne RA, R.P Smith J, Sharwood-Smith G, Sigtermans M, Tzu-Yu Lin, Weiss T   +20 more
core   +1 more source

Ultra‐Flexible Dual‐Band Organic Photodetectors for Visible and Near‐Infrared Sensing

Advanced Optical Materials, EarlyView.
An ultra‐flexible dual‐band organic photodetector with a total thickness of 5.6 µm for bio‐sensing is developed. It selectively detects visible and near‐infrared light with high sensitivity by switching the voltage. Peripheral oxygen saturation (SpO2) measurement is demonstrated using the device attached to a finger under a single light source by ...
Sachi Awakura, Hiroaki Jinno, Yusaku Tagawa, Ryota Fukuzawa, Masahito Takakuwa, Takao Someya, Tomoyuki Yokota   +6 more
wiley   +1 more source

Identifying Elevated Risk for Future Pain Crises in Sickle-Cell Disease Using Photoplethysmogram Patterns Measured During Sleep: A Machine Learning Approach

Frontiers in Digital Health, 2021
Transient increases in peripheral vasoconstriction frequently occur in obstructive sleep apnea and periodic leg movement disorder, both of which are common in sickle cell disease (SCD).
Yunhua Ji, Patjanaporn Chalacheva, Carol L. Rosen, Michael R. DeBaun, Thomas D. Coates, Michael C. K. Khoo   +5 more
doaj   +1 more source