Methods and systems for extracting venous pulsation and respiratory information from photoplethysmographs [PDF]
, 2019 A system and method for separating a venous component and an arterial component from a red signal and an infrared signal of a PPG sensor is provided.
Nourani, Mehrdad, Yousefi, Rasoul
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Accuracy of reflectance photoplethysmography on detecting cuff-induced vascular occlusions [PDF]
, 2015 Photoplethysmography (PPG) is a noninvasive optical technique, which can also be used to derive important parameters other than arterial oxygen saturation (SpO2).
Abay, T., Kyriacou, P. A.
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Frontiers in Neuroscience, 2019 Accurate and practical assessment of the brain circulation is needed to adequately estimate the viability of cerebral blood flow regulatory mechanisms in various physiological conditions.
Olga A. Lyubashina +6 more
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Alterations in electrodermal activity and cardiac parasympathetic tone during hypnosis [PDF]
, 2015 Exploring autonomic nervous system (ANS) changes during hypnosis is critical for understanding the nature and extent of the hypnotic phenomenon and for identifying the mechanisms underlying the effects of hypnosis in different medical conditions.
Kekecs, Z, Szekely, A, Varga, K
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Holographic laser Doppler imaging of pulsatile blood flow [PDF]
, 2015 We report on wide-field imaging of pulsatile motion induced by blood flow using heterodyne holographic interferometry on the thumb of a healthy volunteer, in real-time.
Atlan, Michael +4 more
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Empirical retinal venous pulse wave velocity using modified photoplethysmography
BMC Research Notes, 2023 Objective Using the novel imaging method of high-speed modified photoplethysmography we measured the retinal venous pulse wave velocity in a single case. Results A healthy 30-year-old subject underwent high-speed modified photoplethysmography (120 frames
Anmar Abdul-Rahman +5 more
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Blood Cell Classification Using the Hough Transform and Convolutional Neural Networks [PDF]
, 2018 https://doi.org/10.1007/978-3-319-77712-2_62The detection of red blood cells in blood samples can be crucial for the disease detection in its early stages.
Luque-Baena, Rafael Marcos +4 more
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Cardiovascular assessment by imaging photoplethysmography – a review
Biomedical 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
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Heart Rate Extraction from Novel Neck Photoplethysmography Signals. [PDF]
, 2019 This paper demonstrates for the first time how heart rate (HR) can be extracted from novel neck photoplethysmography (PPG). A novel algorithm is presented, which when tested in neck PPG signals recorded from 9 subjects at different respiratory rates ...
Garcia-Lopez, I +2 more
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Spatiotemporal processing in photoplethysmography for skin microcirculatory perfusion imaging
Biomedical Optics Express, 2022 Technological advances in the real-time visualization of cutaneous microcirculation aim to realize benefits including high-resolution imaging, suppressed noise, and robust temporal coherence. Photoplethysmography (PPG), a noninvasive technique that measures single or multiple points of relative blood volume changes in blood vessels under the skin ...
Dongkai, Cheng +3 more
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