Results 71 to 80 of about 1,197,781 (393)

Evaluation of renal function in dogs using pulsed Doppler ultrasonography

open access: yesOpen Veterinary Journal
Background: In human medicine, efforts have been made to evaluate venous blood flow in the kidneys to diagnose renal disease and estimate renal function.
Takami Ito   +3 more
doaj   +1 more source

Estimation of blood velocity vectors using transverse ultrasound beam focusing and cross-correlation [PDF]

open access: yes, 1999
Modern ultrasound scanners estimate the blood velocity by tracking the movement of the blood scatterers along the ultrasound beam. This is done by emitting pulsed ultrasound fields and finding the shift in position from pulse to pulse by correlating the ...
Jensen, Jørgen Arendt   +1 more
core   +1 more source

Microfluidic electro‐viscoelastic manipulation of extracellular vesicles

open access: yesFEBS Open Bio, EarlyView.
The electro‐viscoelastic manipulation as a potential method for separation of particles based on size. The particles introduced as a sheath flow migrate to the channel center under the influence of simultaneously applied electric field and pressure driven flow.
Seyedamirhosein Abdorahimzadeh   +7 more
wiley   +1 more source

Effect of V-Shaped Groove Microstructure on Blood Flow Resistance in Bionic Artificial Blood Vessels

open access: yesApplied Bionics and Biomechanics, 2023
This study aims to investigate the blood flow in bionic artificial blood vessels and to reduce the resistance to blood flow, the drag reduction characteristics of V-shaped groove drag reduction microstructures in artificial blood vessel structures were ...
Zhou Li   +7 more
doaj   +1 more source

Microbial profile of the appendix niche in acute appendicitis: a novel sampling approach

open access: yesFEBS Open Bio, EarlyView.
This study utilized a novel sampling method, ERAT (i.e. endoscopic retrograde appendicitis treatment)‐guided lumen aspiration, to obtain samples from the appendix, and shotgun metagenomic sequencing was performed for in situ characterization of the appendix microbiome in patients with acute appendicitis.
Huimin Ma   +10 more
wiley   +1 more source

NUMERICAL ANALYSIS IN ARTERIAL STENOSIS AFFECTED BY ISCHEMIC HEART DISEASE USING FINITE VOLUME METHOD

open access: yesBarekeng
Atherosclerosis is the narrowing of blood vessels caused by the buildup of cholesterol plaque on the walls of the arteries. Excessive buildup of cholesterol plaque disrupts the circulatory system, thereby affecting the speed and pressure of blood flow ...
Arif Fatahillah   +4 more
doaj   +1 more source

A simple deep breathing test reveals altered cerebral autoregulation in type 2 diabetic patients [PDF]

open access: yes, 2018
Aims/hypothesis: Patients with diabetes mellitus have an increased risk of stroke and other cerebrovascular complications. The purpose of this study was to evaluate the autoregulation of cerebral blood flow in diabetic patients using a simple method that
Brown, C.   +4 more
core  

Influence of Hyperpyrexia on Velocity of Blood Flow.

open access: yesExperimental Biology and Medicine, 1933
ConclusionsDuring hyperpyrexia, induced by radiothermy, there is an acceleration of the velocity of blood flow.
William Bierman, Milton Kissin
openaire   +2 more sources

Clinical Characteristics of Parkinsonism in HTLV‐1‐Associated Myelopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Human T‐lymphotropic virus type 1 (HTLV‐1)‐associated myelopathy/tropical spastic paraparesis (HAM/TSP) is the classic neurological manifestation of HTLV‐1 infection; however, this virus has also been associated with other neurological disorders. Concurrent parkinsonism is relatively rare and presents diagnostic challenges.
Mika Dozono   +8 more
wiley   +1 more source

Uncoupling of Microvascular Blood Flow and Capillary Density in Vascular Cognitive Impairment

open access: yesFrontiers 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
doaj   +1 more source

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