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Blood Flow Velocity

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An Efficient Cardiac Arrhythmia Onset Detection Technique Using a Novel Feature Rank Score Algorithm.

Journal of medical systems May 6, 2019
The interpretation of various cardiovascular blood flow abnormalities can be identified using Electrocardiogram (ECG). The predominant anomaly due to the blood flow dynamics leads to the occurrence of cardiac arrhythmias in the cardiac system. In thi...
Signal Processing, Computer-Assisted Arrhythmias, Cardiac Heart Rate Cardiac Output Blood Flow Velocity Humans Algorithms Electrocardiography Support Vector Machine
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Machine learning derived segmentation of phase velocity encoded cardiovascular magnetic resonance for fully automated aortic flow quantification.

Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance Jan 7, 2019
BACKGROUND: Phase contrast (PC) cardiovascular magnetic resonance (CMR) is widely employed for flow quantification, but analysis typically requires time consuming manual segmentation which can require human correction. Advances in machine learning ha...
Blood Flow Velocity Aorta Myocardial Perfusion Imaging Magnetic Resonance Imaging, Cine Heart Diseases Reproducibility of Results Machine Learning Image Interpretation, Computer-Assisted Aged Automation Prospective Studies Male Hemodynamics Proof of Concept Study Humans Middle Aged Retrospective Studies United States Female Aortic Valve Predictive Value of Tests
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Collateral Automation for Triage in Stroke: Evaluating Automated Scoring of Collaterals in Acute Stroke on Computed Tomography Scans.

Cerebrovascular diseases (Basel, Switzerland) Jan 1, 2019
Computed tomography angiography (CTA) collateral scoring can identify patients most likely to benefit from mechanical thrombectomy and those more likely to have good outcomes and ranges from 0 (no collaterals) to 3 (complete collaterals). In this stu...
Automation Blood Flow Velocity Thrombectomy Cerebrovascular Circulation Middle Cerebral Artery Computed Tomography Angiography Cerebral Angiography Collateral Circulation Triage Radiographic Image Interpretation, Computer-Assisted Stroke Patient Selection Humans Machine Learning Prognosis Clinical Decision-Making Predictive Value of Tests
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Machine learning in multiexposure laser speckle contrast imaging can replace conventional laser Doppler flowmetry.

Journal of biomedical optics Jan 1, 2019
Laser speckle contrast imaging (LSCI) enables video rate imaging of blood flow. However, its relation to tissue blood perfusion is nonlinear and depends strongly on exposure time. By contrast, the perfusion estimate from the slower laser Doppler flow...
Reproducibility of Results Adult Male Image Processing, Computer-Assisted Humans Neural Networks, Computer Machine Learning Computer Simulation Lasers Calibration Monte Carlo Method Blood Flow Velocity Models, Statistical Regional Blood Flow Perfusion Erythrocytes Laser-Doppler Flowmetry Stochastic Processes Microcirculation
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A brain-computer interface based on functional transcranial doppler ultrasound using wavelet transform and support vector machines.

Journal of neuroscience methods Jan 1, 2018
BACKGROUND: Functional transcranial Doppler (fTCD) is an ultrasound based neuroimaging technique used to assess neural activation that occurs during a cognitive task through measuring velocity of cerebral blood flow.
Humans Brain Language Female Young Adult Brain-Computer Interfaces Wavelet Analysis Blood Flow Velocity Neuropsychological Tests Male Imagination Cerebrovascular Circulation Feasibility Studies Functional Neuroimaging Ultrasonography, Doppler, Transcranial Space Perception Rotation Cognition Linear Models Support Vector Machine Rest
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Reduced Internal Carotid Artery Flow in Color-coded Carotid Duplex Sonography.

Acta neurologica Taiwanica Dec 15, 2016
PURPOSE: Reduced flow in the internal carotid artery (ICA) is related to cerebral ischemia. We established a classification of reduced ICA flow through color-coded carotid duplex (CCD) sonography.
Cerebrovascular Circulation Carotid Artery, Internal Carotid Stenosis Ultrasonography, Doppler, Duplex Adult Humans Male Retrospective Studies Female Aged Middle Aged Blood Flow Velocity
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Using machine learning to model dose-response relationships.

Journal of evaluation in clinical practice Dec 1, 2016
RATIONALE, AIMS AND OBJECTIVES: Establishing the relationship between various doses of an exposure and a response variable is integral to many studies in health care. Linear parametric models, widely used for estimating dose-response relationships, h...
Isoproterenol Blood Flow Velocity Cardiotonic Agents Male Dose-Response Relationship, Drug Discriminant Analysis Data Mining Humans Machine Learning Algorithms
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Learning of speckle statistics for in vivo and noninvasive characterization of cutaneous wound regions using laser speckle contrast imaging.

Microvascular research Sep 1, 2016
Laser speckle contrast imaging (LSCI) provides a noninvasive and cost effective solution for in vivo monitoring of blood flow. So far, most of the researches consider changes in speckle pattern (i.e. correlation time of speckle intensity fluctuation)...
Sarcoma 180 Predictive Value of Tests Area Under Curve Data Interpretation, Statistical Supervised Machine Learning ROC Curve Mice Wound Healing Regional Blood Flow Disease Models, Animal Image Interpretation, Computer-Assisted Immunohistochemistry Skin Blood Flow Velocity Laser-Doppler Flowmetry Microcirculation Perfusion Imaging Reproducibility of Results Animals Male Time Factors
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