Results 71 to 80 of about 7,588 (202)

Spatio-temporal and -spectral feature maps in photoplethysmography imaging and infrared thermograph

open access: yesBioMedical Engineering OnLine, 2021
Background Only a small fraction of the information available is generally used in the majority of camera-based sensing approaches for vital sign monitoring.
Michael Paul   +5 more
doaj   +1 more source

The effects of optical sensor-tissue separation in endocavitary photoplethysmography [PDF]

open access: yes, 2018
Objective: Intestinal anastomotic failure that occurs mainly due to ischaemia is a serious risk in colorectal cancer patients undergoing surgery. Surgeons continue to rely on subjective methods such as visual inspection to assess intestinal viability ...
Kyriacou, P. A., Patel, Z., Thaha, M. A.
core   +3 more sources

Artificial intelligence for adaptive neuromodulation in drug‐resistant epilepsy

open access: yesEpilepsia, EarlyView.
Abstract Drug‐resistant epilepsy (DRE) affects nearly one third of people with epilepsy and is associated with substantial cognitive, psychiatric, and mortality burdens. For patients who are not candidates for resection or laser interstitial thermal therapy, neuromodulation therapies such as vagus nerve stimulation, deep brain stimulation, and ...
Amir Hossein Daraie   +10 more
wiley   +1 more source

Contactless Monitoring of Microcirculation Reaction on Local Temperature Changes

open access: yesApplied Sciences, 2019
Assessment of skin blood flow is an important clinical task which is required to study mechanisms of microcirculation regulation including thermoregulation.
Maxim A. Volynsky   +3 more
doaj   +1 more source

Comparison of NIRS, laser Doppler flowmetry, photoplethysmography, and pulse oximetry during vascular occlusion challenges [PDF]

open access: yes, 2016
© 2016 Institute of Physics and Engineering in Medicine. Monitoring changes in blood volume, blood flow, and oxygenation in tissues is of vital importance in fields such as reconstructive surgery and trauma medicine.
Allen J   +7 more
core   +1 more source

Recent advances in organic broad‐spectrum photodetection materials and devices

open access: yesInfoMat, EarlyView.
Graphical Abstract This review systematically outlines the evolution of organic photodetectors from fullerene‐based to advanced non‐fullerene acceptors, highlighting how molecular engineering (e.g., D–A, quinoidal, and A‐D‐A′‐D‐A architectures) extends spectral response into the short‐wave infrared region.
Yilin Zhao   +3 more
wiley   +1 more source

Combining Chrominance Features and Fast ICA for Noncontact Imaging Photoplethysmography

open access: yesIEEE Access, 2020
Video-based noncontact detection of heart rate has a wide range of applications in the field of medicine and health. However, this method is susceptible to noise interference, making it difficult to effectively extract blood volume pulse (BVP) signals ...
Ken Cai   +4 more
doaj   +1 more source

High-Reliability Non-Contact Photoplethysmography Imaging for Newborn Care by a Generative Artificial Intelligence

open access: yesIEEE Access, 2023
Long-term wiring on a newborn patient could be a disguise scene for parents. Unobtrusive and reliable monitoring without wiring can be a euphoric alternative for newborns and parents in obstetrics and gynecology (OB/GYN) incubation rooms.
Yenming J. Chen   +5 more
doaj   +1 more source

DistancePPG: Robust non-contact vital signs monitoring using a camera

open access: yes, 2015
Vital signs such as pulse rate and breathing rate are currently measured using contact probes. But, non-contact methods for measuring vital signs are desirable both in hospital settings (e.g. in NICU) and for ubiquitous in-situ health tracking (e.g.
Kumar, Mayank   +2 more
core   +1 more source

Alterations in electrodermal activity and cardiac parasympathetic tone during hypnosis [PDF]

open access: yes, 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
core   +1 more source

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