Results 31 to 40 of about 624,360 (317)

Synchronized renal blood flow dynamics mapped with wavelet analysis of laser speckle flowmetry data. [PDF]

open access: yesPLoS ONE, 2014
Full-field laser speckle microscopy provides real-time imaging of superficial blood flow rate. Here we apply continuous wavelet transform to time series of speckle-estimated blood flow from each pixel of the images to map synchronous patterns in ...
Alexey R Brazhe   +3 more
doaj   +1 more source

Extremely weakly-supervised blood vessel segmentation with physiologically based synthesis and domain adaptation [PDF]

open access: yesarXiv, 2023
Accurate analysis and modeling of renal functions require a precise segmentation of the renal blood vessels. Micro-CT scans provide image data at higher resolutions, making more small vessels near the renal cortex visible. Although deep-learning-based methods have shown state-of-the-art performance in automatic blood vessel segmentations, they require ...
arxiv  

Blood transfusion improves renal oxygenation and renal function in sepsis-induced acute kidney injury in rats [PDF]

open access: yes, 2016
Background: The effects of blood transfusion on renal microcirculation during sepsis are unknown. This study aimed to investigate the effect of blood transfusion on renal microvascular oxygenation and renal function during sepsis-induced acute kidney ...
Ergin, B. (Bülent)   +3 more
core   +5 more sources

Computational fluid dynamicaccuracy in mimicking changes in blood hemodynamics in patients with acute type IIIb aortic dissection treated with TEVAR [PDF]

open access: yes, 2018
Background: We aimed to verify the accuracy of the Computational Fluid Dynamics (CFD) algorithm for blood flow reconstruction for type IIIb aortic dissection (TBAD) before and after thoracic endovascular aortic repair (TEVAR).
Domenig, Christoph   +5 more
core   +1 more source

Red cell trapping and postischemic renal blood flow. Differences between the cortex, outer and inner medulla [PDF]

open access: yes, 1991
Red cell trapping and postischemic renal blood flow. Differences between the cortex, outer and inner medulla. The distribution of blood flow in the rat kidney after 60 minutes of renal ischemia was studied by single-fiber laser-Doppler flowmetry.
Berjano, M.   +3 more
core   +3 more sources

Organs Blood Flow during Elevation of Body Temperature in Sevoflurane Anesthetized Rats

open access: yesAnesthesiology Research and Practice, 2017
The aim of this study is to investigate how elevation of body temperature changes organs blood flow during sevoflurane anesthesia. We conducted in vivo research on 14 male Wistar rats to monitor pulse rate and arterial blood pressure and measure hepatic,
Koichi Shimo, Ko Takakura, Kenji Shigemi
doaj   +1 more source

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

Differential effect of T-type voltage-gated calcium channel disruption on renal plasma flow and glomerular filtration rate in vivo [PDF]

open access: yes, 2014
Voltage-gated Ca2+ (Cav) channels play an essential role in the regulation of renal blood flow and glomerular filtration rate (GFR). Because T-type Cav channels are differentially expressed in pre- and postglomerular vessels, it was hypothesized that ...
Andersen, Henrik   +8 more
core   +1 more source

The comparative study of color doppler flow imaging, superb microvascular imaging, contrast-enhanced ultrasound micro flow imaging in blood flow analysis of solid renal mass

open access: yesCancer Imaging, 2022
Purposes To evaluate the value of Color Doppler Flow Imaging (CDFI), Superb Microvascular Imaging (SMI) and Contrast-enhanced Ultrasound Microflow Imaging (MFI) in display the microvascular blood flow signals in renal solid lesions.
Yiran Mao   +4 more
doaj   +1 more source

Sympathetic nerve-derived ATP regulates renal medullary vasa recta diameter via pericyte cells: a role for regulating medullary blood flow? [PDF]

open access: yes, 2013
Pericyte cells are now known to be a novel locus of blood flow control, being able to regulate capillary diameter via their unique morphology and expression of contractile proteins.
Crawford, C.   +4 more
core   +2 more sources

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