Results 11 to 20 of about 7,351 (197)

Duality in response of intracranial vessels to nitroglycerin revealed in rats by imaging photoplethysmography [PDF]

open access: yesScientific Reports, 2023
Among numerous approaches to the study of migraine, the nitroglycerin (NTG) model occupies a prominent place, but there is relatively insufficient information about how NTG affects intracranial vessels.
Alexey Y. Sokolov   +6 more
doaj   +2 more sources

Author Correction: Animal model of assessing cerebrovascular functional reserve by imaging photoplethysmography [PDF]

open access: yesScientific Reports, 2021
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Oleg V. Mamontov   +6 more
doaj   +2 more sources

Animal model of assessing cerebrovascular functional reserve by imaging photoplethysmography. [PDF]

open access: yesSci Rep, 2020
AbstractAssessment of the cerebral blood-flow-reserve in patients with cerebrovascular diseases is extremely important in terms of making prognosis, determining treatment tactics, and controlling the revascularization outcome in the case of reconstructive interventions on the brain vessels.
Mamontov OV   +6 more
europepmc   +4 more sources

Using imaging photoplethysmography for heart rate estimation in non-human primates. [PDF]

open access: yesPLoS ONE, 2018
For humans and for non-human primates heart rate is a reliable indicator of an individual's current physiological state, with applications ranging from health checks to experimental studies of cognitive and emotional state.
Anton M Unakafov   +5 more
doaj   +2 more sources

Fair non-contact blood pressure estimation using imaging photoplethysmography. [PDF]

open access: yesBiomed Opt Express
Hypertension is typically manifested as a latent symptom that requires detection through specialized equipment. This poses an inconvenience for individuals who need to undergo long-term blood pressure monitoring in their daily lives. Therefore, there is a need for a portable, non-contact method for estimating blood pressure.
Fang H, Xiong J, He L.
europepmc   +3 more sources

Correction: Using imaging photoplethysmography for heart rate estimation in non-human primates. [PDF]

open access: yesPLoS ONE, 2019
[This corrects the article DOI: 10.1371/journal.pone.0202581.].
Anton M Unakafov   +5 more
doaj   +2 more sources

Multi-wavelength imaging photoplethysmography for non-invasive and non-contact assessment of burn severity [PDF]

open access: yesScientific Reports
We report a non-contact burn severity assessment system using the image-based photoplethysmography (IPPG) technique by fabricating a multi-wavelength imaging system.
You-rim Park, Joo Beom Eom
doaj   +2 more sources

USING PHOTOPLETHYSMOGRAPHY IMAGING FOR OBJECTIVE CONTACTLESS PAIN ASSESSMENT

open access: yesActa Polytechnica, 2014
This work presents an extension to the known Analgesia Nociception Index (ANI), which provides an objective estimation of the current depth of analgesia. An adequate “measure” would facilitate so-called balanced anesthesia.
Marcus Koeny   +7 more
doaj   +2 more sources

Accurate measurement of the pulse wave delay with imaging photoplethysmography. [PDF]

open access: yesBiomed Opt Express, 2016
Assessment of the cardiovascular parameters using noncontact video-based or imaging photoplethysmography (IPPG) is usually considered as inaccurate because of strong influence of motion artefacts. To optimize this technique we performed a simultaneous recording of electrocardiogram and video frames of the face for 36 healthy volunteers.
Kamshilin AA   +5 more
europepmc   +5 more sources

Novel capsaicin-induced parameters of microcirculation in migraine patients revealed by imaging photoplethysmography [PDF]

open access: yesThe Journal of Headache and Pain, 2018
Background The non-invasive biomarkers of migraine can help to develop the personalized medication of this disorder. In testing of the antimigraine drugs the capsaicin-induced skin redness with activated TRPV1 receptors in sensory neurons associated with
Alexei A. Kamshilin   +7 more
doaj   +2 more sources

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