Laser Doppler flowmetry
Influence of optical properties and fiber separation on laser doppler flowmetry
... the laser Doppler tech- nique depend on how the light interacts with moving blood cells and static ...multichannel laser Doppler flowmetry 共LDF兲 probe, that the sampling depth increases ...
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Evaluation of a combined reflectance photoplethysmography and laser Doppler flowmetry surface probe
... and laser Doppler flowmetry surface probe Zahra Abdollahi, Justin ...eombining laser Doppler flowmetry and photoplethysmography (PPG) in a single probe for the simultaneous ...
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Monitoring effects of acupressure, needle and laserneedle stimulation by infrared thermography and laser Doppler flowmetry?
... Abstract The aim of this study was to evaluate possible effects of temperature or microcirculation changes on the acupoint UB.67 during acupressure, needle or laserneedle stimulation at the acupoint UB.2, as described ...
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Comparison of NIRS, laser Doppler flowmetry, photoplethysmography, and pulse oximetry during vascular occlusion challenges
... Gomez H et al 2008 Use of non-invasive NIRS during a vascular occlusion test to assess dynamic tissue O 2 saturation response Intensive Care Med. 34 1600 – 7 Hallock G G and Rice D C 2003 A comparison of pulse oximetry ...
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Investigation of photoplethysmography, laser doppler flowmetry and near infrared spectroscopy during induced thermal stress
... I. INTRODUCTION Continuous assessment of blood and tissue oxygenation in critically ill patients is of paramount importance, as that can prompt diagnosis of hypoperfusion and tissue hypoxia, and hence the effectiveness ...
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Intra-operative optical monitoring of bowel tissue viability based on photoplethysmography and laser doppler flowmetry
... techniques, laser Doppler flowmetry (LDF) and Photoplethysmography (PPG), into one probe intended for assessment of perfusion in abdominal tissue during bowel resection ...
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Determination of Capsaicin Induced Increase in Dermal Blood Flow Using Laser Doppler Flowmetry Technique
... evaluated laser Doppler flowmetry technique using LDF100C (Biopac systems) by determining blood flow changes following acute application of capsaicin on 12 healthy human ...
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Intra-operative optical monitoring of bowel tissue viability based on photoplethysmography and laser doppler flowmetry
... Laser Doppler flowmetry (LDF) is a method for estimating the measurement of microvascular red blood cells (or erythrocytes) perfusion in tissue including capillaries, arterioles, venules and shunting ...
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The diagnostic accuracy of laser Doppler flowmetry in assessing pulp blood flow in permanent teeth: A systematic review
... analysis. Laser Doppler flowmetry was reported to be more accurate in differentiating between teeth with normal pulps and pulp necrosis with a sensitivity of ...of laser Doppler ...
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Repeated laser doppler flowmetry procedures in bone do not alter perfusion, localized inflammation, or gait patterns
... fracturing. Laser Doppler flowmetry (LDF) is a technique that has been validated to measure blood flow in mouse hindlimb bones in vivo, but to date it has only been used for measurements at a single ...
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Bolus injection of MR contrast agents: hemodynamic effects evaluated by intracerebral laser Doppler flowmetry in rats
... a Doppler frequency shift, while light scattered by station- ary tissue does not change ...of laser Doppler flowmetry for quanti- tative measurements of CBF changes had been carried out in an ...
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Contribution of laser Doppler flowmetry with venoarteriolar reflex, cold, and rewarming testing, and intravital capillaroscopy to diagnose Raynaud's phenomenon
... Irreversible after treatment (SSc, PAOD, VWF, partial vasculitis) Figure 3 Schema of how to interpret the test results for different diagnoses. The schema clearly shows that the most important discriminating procedure is ...
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Analysis of laser speckle contrast images variability using a novel empirical mode decomposition: comparison of results with laser doppler flowmetry signals variability
... laser Doppler flowmetry signals variability Anne Humeau-Heurtier, Pierre Abraham, and Guillaume Mah´e Abstract—Laser Doppler flowmetry (LDF) and laser speckle contrast ...
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Multi-site laser Doppler flowmetry for assessing collateral flow in experimental ischemic stroke: Validation of outcome prediction with acute MRI
... multi-site laser Doppler flowmetry (LDF) monitoring in both the lateral MCA territory and the borderzone territory between MCA and anterior cerebral ...
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Evaluation of a combined reflectance photoplethysmography and laser Doppler flowmetry surface probe
... Oxygen saturation (SpO 2 ) and respiratory variation in pulse oximetry plethysmograph for red and infrared signals ( ∆ POP R , ∆ POP IR ) were calculated and compared [r] ...
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Linköping University Post Print. Measurement depth and volume in laser Doppler flowmetry
... ac (3) where A is the number of coherence areas. From equations 2 and 3 it can be realized that the magnitude of i ac 2 and hence the perfusion value will scale inversely to the number of coherence areas, for the same ...
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Comparison of NIRS, laser Doppler flowmetry, photoplethysmography, and pulse oximetry during vascular occlusion challenges
... (NIRS), laser Doppler (LDF) lowmetry, photoplethysmography (PPG), and pulse oximetry (PO) contribute to such ields due to their safe and noninvasive ...
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A modification of intraluminal middle cerebral artery occlusion/reperfusion model for ischemic stroke with laser Doppler flowmetry guidance in mice
... Here, we optimized the procedure of this model by ligating on external carotid artery (ECA) stump and two ligatures prepared on internal carotid artery, which could improve the success[r] ...
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<p>Perioperative Microcirculatory Changes Detected with Gastroscopy Assisted Laser Doppler Flowmetry and Visible Light Spectroscopy in Patients with Median Arcuate Ligament Syndrome</p>
... Abbreviations: ROC, receiver operated characteristics; MALS, median arcuate ligament syndrome; CG1, control group 1; AUC, area under the curve; CMI, chronic mesenteri[r] ...
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Laser Doppler Anemometry
... The laser does not disturb the flow and is used in flows of unknown directions to give accurate measurements in unsteady turbulent ...particular laser Doppler anemometer is a dual beam that uses two ...
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