Results 111 to 120 of about 13,699 (253)

Photoacoustic Doppler flowmetry of whole blood by pulsed laser [PDF]

open access: yes, 2012
In order to measure the flow velocity of whole blood in vessel mimicking tube inside optically scattering media, a 1064nm pulsed laser with the repetition rate of 10Hz was used as a pumping source to generate photoacoustic doppler signal.
Xu, Huiyi   +5 more
core   +1 more source

A new signal processing in laser Doppler flowmetry [PDF]

open access: yes, 2019
Due to simplicity and ease of use, the laser Doppler flowmetry (LDF) has found applications in various areas of research related to non-invasive diagnosis of blood microcirculation.
Zherebtsov, Evgeny   +6 more
core   +1 more source

EVALUATION OF BLOOD FLOW DISTURBANCES IN DIABETIC PATIENTS BY LASER DOPPLER FLOWMETRY

open access: yesZdravniški Vestnik, 2003
Background. The aim of this study was to investigate patients with non-insulin dependent diabetes by laser Doppler flowmetry in order to asses changes in the peripheral flow regulation during hemodynamics tests as evidence of impaired auto-regulation of ...
Blaž Mlačak   +4 more
doaj  

Measurement of Cerebral Cortical Blood Flow by Laser-Doppler Flowmetry in Rat Forebrain Ischemia [PDF]

open access: yes
Laser-Doppler flowmetry is a new method allowing convenient and continuous measurement of blood flow. The aim of our sutdy was to evaluate the accuracy of Laser-Doppler flowmetry for measurement of blood flow in the central nervous system, compared with ...
Yamashita, Tetsuo   +4 more
core  

Laser Doppler Assessment of Vasomotor Axon Reflex Responsiveness to Evaluate Neurovascular Function

open access: yesFrontiers in Neurology, 2017
The vasomotor axon reflex can be evoked in peripheral epidermal nociceptive C-fibers to induce local vasodilation. This neurogenic flare response is a measure of C-fiber functional integrity and therefore shows impairment in patients with small fiber ...
Marie Luise Kubasch   +6 more
doaj   +1 more source

Reliability of Pulpal Blood-flow Measurements Utilizing Laser Doppler Flowmetry [PDF]

open access: yes, 1991
Pulpal blood flow can now be measured non-invasively in the clinic utilizing laser Doppler flowmetry. The purpose of our study was to test (1) whether the position of the measurement probe on the tooth affects blood-flow measurements and (2) whether ...
J. Artun, D.S. Ramsay, S.S. Martinen
core   +1 more source

Local Heating as a Predilatation Method for Measurement of Vasoconstrictor Responses with Laser-Doppler Flowmetry [PDF]

open access: yes, 2011
Studying microvascular responses to iontophoresis of vasoconstricting drugs contributes to a better understanding of the regulatory mechanisms of cutaneous vessels, but measuring these responses with laser-Doppler flowmetry at basal blood flow conditions
Baiat, Yashma   +5 more
core   +1 more source

Correlation of rheoencephalography and laser Doppler flow: a rat study

open access: yesJournal of Electrical Bioimpedance, 2016
Measuring brain electrical impedance (rheoencephalography) is a potential technique for noninvasive, continuous neuro-monitoring of cerebral blood flow autoregulation in humans.
Bodo Michael   +6 more
doaj   +1 more source

Laser Doppler flowmetry during hyperaemic reactions in the skin [PDF]

open access: yes, 1988
Laser Doppler flowmetry (LDF) was used to study skin blood flow in the finger tip and on the dorsum of the hand in healthy volunteers. Vasodilatation in the finger tip was induced by immersing the arm in water at 42 degrees C, and vasodilatation in the ...
Jönsson, Bo-Anders, Svensson, Henry
core  

Method for Bioimpedance Assessment of Superficial Head Tissue Microcirculation

open access: yesSensors
Assessment of microcirculation status during surgical interventions is of significant interest for monitoring tissue perfusion and controlling the effectiveness of systemic hemodynamics.
Andrey Briko   +5 more
doaj   +1 more source

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