In vivo photoacoustic flowmetry in the optical diffusive regime based on saline injection [PDF]
, 2016 We propose a saline-injection-based method to quantify blood flow velocity in vivo with acoustic-resolution photoacoustic tomography. By monitoring the saline-blood-interface propagating in the blood vessel, we can resolve the flow velocity.
Li, Guo +3 more
core
Diagnostic and Interventional Radiology, 2014 PURPOSEWe aimed to determine the correlation between flow characteristics of the proximal pulmonary arteries and vena cava obtained by 3.0 T phase-contrast magnetic resonance imaging (MRI) and hemodynamic characteristics by right heart catheterization in
Xiaojuan Guo +7 more
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Uncoupling of Microvascular Blood Flow and Capillary Density in Vascular Cognitive Impairment
Frontiers in Neurology, 2019 Cerebral small vessel disease (cSVD) plays an important role in dementia and is a major cause for vascular cognitive impairment (VCI). Recent studies hypothesized that capillary dysfunction including reduction of capillary patency, rather than a flow ...
Chenxing Eleana Zhang +7 more
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Functional Ultrasound Speckle Decorrelation‐Based Velocimetry of the Brain
Advanced Science, 2020 A high‐speed, contrast‐free, quantitative ultrasound velocimetry (vUS) for blood flow velocity imaging throughout the rodent brain is developed based on the normalized first‐order temporal autocorrelation function of the ultrasound field signal.
Jianbo Tang +7 more
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Clinical Phenotyping of Long COVID Patients Evaluated in a Specialized Neuro‐COVID Clinic
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To report Long COVID characteristics and longitudinal courses of patients evaluated between 4/14/21–4/14/22 at the University of Pennsylvania Neurological COVID Clinic (PNCC), including clinical symptoms, neurological examination findings, and neurocognitive screening tests from a standardized PNCC neurological evaluation approach ...
Luana D. Yamashita +7 more
wiley +1 more source
Navier-Stokes Modelling of Non-Newtonian Blood Flow in Cerebral Arterial Circulation and its Dynamic Impact on Electrical Conductivity in a Realistic Multi-Compartment Head Model [PDF]
arXiv, 2023 Background and Objective: This study aims to evaluate the dynamic effect of non-Newtonian cerebral arterial circulation on electrical conductivity distribution (ECD) in a realistic multi-compartment head model. It addresses the importance and challenges associated with electrophysiological modalities, such as transcranial electrical stimulation ...
arxiv
Influence of Hyperpyrexia on Velocity of Blood Flow.
Experimental Biology and Medicine, 1933 ConclusionsDuring hyperpyrexia, induced by radiothermy, there is an acceleration of the velocity of blood flow.
William Bierman, Milton Kissin
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Cyclical variations in cerebral blood flow velocity. [PDF]
Archives of Disease in Childhood, 1991 Because little is known about spontaneous changes in cerebral blood flow in neonates, a newly developed online Doppler technique was used to insonate continuously the middle cerebral arteries of a group of sick (n = 20) and full term healthy (n = 16) newborn infants for a period of one minute. A total of 290 recordings of epochs each lasting one minute
D H Evans +2 more
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The effect of high and low amplitudes during whole body vibration on lower leg arterial blood flow [PDF]
, 2009 Whole body vibration (WBV) is a technique that has been shown to induce positive blood flow changes, however little is known about the effect of different vibration amplitudes on arterial blood flow. Purpose.
Kimmell, Jacob H.
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The Importance of Velocity Acceleration to Flow-Mediated Dilation
International Journal of Vascular Medicine, 2012 The validity of the flow-mediated dilation test has been questioned due to the lack of normalization to the primary stimulus, shear stress. Shear stress can be calculated using Poiseuille's law.
Lee Stoner +3 more
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