Results 11 to 20 of about 7,588 (215)

Cardiovascular assessment by imaging photoplethysmography – a review

open access: yesBiomedical Engineering / Biomedizinische Technik, 2018
AbstractOver the last few years, the contactless acquisition of cardiovascular parameters using cameras has gained immense attention. The technique provides an optical means to acquire cardiovascular information in a very convenient way. This review provides an overview on the technique’s background and current realizations.
Zaunseder, Sebastian   +3 more
openaire   +4 more sources

Photoplethysmography Revisited: From Contact to Noncontact, From Point to Imaging [PDF]

open access: yesIEEE Transactions on Biomedical Engineering, 2016
Photoplethysmography (PPG) is a noninvasive optical technique for detecting microvascular blood volume changes in tissues. Its ease of use, low cost and convenience make it an attractive area of research in the biomedical and clinical communities. Nevertheless, its single spot monitoring and the need to apply a PPG sensor directly to the skin limit its
Yu, Sun, Nitish, Thakor
openaire   +4 more sources

Innovative approaches in imaging photoplethysmography for remote blood oxygen monitoring

open access: yesScientific Reports
Peripheral Capillary Oxygen Saturation (SpO2) has received increasing attention during the COVID-19 pandemic. Clinical investigations have demonstrated that individuals afflicted with COVID-19 exhibit notably reduced levels of SpO2 before the ...
Shangwei Zhu   +4 more
doaj   +3 more sources

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

open access: yesИзвестия 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   +7 more
doaj   +1 more source

An iPPG-Based Device for Pervasive Monitoring of Multi-Dimensional Cardiovascular Hemodynamics

open access: yesSensors, 2021
Hemodynamic activities, as an essential measure of physiological and psychological characteristics, can be used for cardiovascular and cerebrovascular disease detection.
Jingjing Luo   +4 more
doaj   +1 more source

Feasibility of Imaging Photoplethysmography [PDF]

open access: yes2008 International Conference on BioMedical Engineering and Informatics, 2008
Contact and spot measurement have limited the application of photoplethysmography (PPG), thus an imaging PPG system comprising a digital CMOS camera and three wavelength light-emitting diodes (LEDs) is developed to detect the blood perfusion in tissue.
Jia Zheng   +3 more
openaire   +1 more source

Correlation Mapping of Perfusion Patterns in Cutaneous Tissue

open access: yesApplied Sciences, 2022
Perfusion patterns of cutaneous tissue represent a valuable source of information about the state of the patient’s cardiovascular system and autonomic nervous system (ANS).
Patrik Procka   +3 more
doaj   +1 more source

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

open access: yes, 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.   +15 more
core   +3 more sources

Assessment of cerebral circulation through an intact skull using imaging photoplethysmography [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
The feasibility of assessing the parameters of cerebral hemodynamics without skull trepanation using imaging photoplethysmography with illumination in the near-infrared spectrum range was demonstrated for the first time.
Maxim A. Volynsky   +6 more
doaj   +1 more source

Contactless photoplethysmography for assessment of small fiber neuropathy

open access: yesFrontiers in Physiology, 2023
Chronic pain is a prevalent condition affecting approximately one-fifth of the global population, with significant impacts on quality of life and work productivity.
Zbignevs Marcinkevics   +6 more
doaj   +1 more source

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