Cardiovascular assessment by imaging photoplethysmography – a review
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
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Photoplethysmography Revisited: From Contact to Noncontact, From Point to Imaging [PDF]
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
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]
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
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]
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
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]
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]
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
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

