Results 111 to 120 of about 1,269,390 (393)

SCS: Superior‐Vena‐Cava Compressing Shape‐Memory‐Alloy‐Based Implantable Device for Heart Failure

Advanced Engineering Materials, EarlyView.
An implantable superior–vena‐cava compression device, utilizing biocompatible shape‐memory‐alloy actuators, regulates blood flow and thereby achieves an 18.6% reduction in end‐diastolic left ventricular volume in a porcine model of ADHF. This potential long‐term solution minimizes thrombosis risk by avoiding direct blood contact, offering a significant
Yongjin Kim, Jeonghyeon Lee, Jeongwon Kim, Domin Cho, Hyunwoo Lee, Se Jin Oh, Amy Kyungwon Han   +6 more
wiley   +1 more source

Evaluation of renal oxygenation and perfusion in patients with chronic kidney disease: a preliminary prospective study based on functional magnetic resonance

Renal Failure
Background Renal hypoxia and ischemia significantly contribute to chronic kidney disease (CKD) progression, underscoring the need for noninvasive quantitative assessments.
Xinyue Zhang, Chaoyang Ye, Fang Lu, Jing Yang, Yizeng Xu, Chen Wang   +5 more
doaj   +1 more source

Spatio-temporal filtering in laser Doppler holography for retinal blood flow imaging [PDF]

arXiv, 2020
Laser Doppler holography (LDH) is a full-field interferometric imaging technique recently applied in ophthalmology to measure blood flow, a parameter of high clinical interest. From the temporal fluctuations of digital holograms acquired at ultrafast frame rates, LDH reveals retinal and choroidal blood flow with a few milliseconds of temporal ...
arxiv  

Reconstructing the Hemodynamic Response Function via a Bimodal Transformer [PDF]

arXiv, 2023
The relationship between blood flow and neuronal activity is widely recognized, with blood flow frequently serving as a surrogate for neuronal activity in fMRI studies. At the microscopic level, neuronal activity has been shown to influence blood flow in nearby blood vessels.
arxiv  

Nuclear medicine: investigation of renal function in small animal medicine [PDF]

, 2011
Kidney function investigations in veterinary medicine are traditionally based on blood analysis (blood urea nitrogen (BUN) and serum creatinine concentration) and / or urinalysis (urine specific gravity, protein-to-creatinine ratio or fractional ...
De Sadeleer, Carlos, Dobbeleir, André, Ham, Hamphrey, Peremans, Kathelijne, Slegers, Guido, van Bree, Henri, Vandermeulen, Eva, Vermeire, Simon   +7 more
core  

Changes in renal blood flow, extraction of inulin, glomerular filtration rate, tissue pressure and urine flow with acute alterations of renal artery blood pressure.

American Journal of Physiology, 1951
I N A PREVIOUS publication (I) it was reported that acute stimulation of the renal nerves in the anesthetized dog caused reductions in renal blood flow (measured directly by a rotameter), the extraction of inulin (filtration fraction), glomerular ...
R. E. Shipley, R. Study
semanticscholar   +1 more source

A Novel Protein‐Polysaccharide Oral Nanoemulsion Targeting Activated Hepatic Stellate Cells to Enhance the Therapeutic Effect of Pirfenidone on Fibrosis After Transarterial Chemoembolization for Liver Cancer

Advanced Functional Materials, EarlyView.
Transarterial Chemoembolization (TACE) may aggravate liver fibrosis. In this study, a novel oral targeting nanoemulsion is fabricated to enhance the therapeutic effect of antifibrotic drug‐pirfenidone (PFD) on fibrosis after TACE. Studies have shown that PFD nanoemulsion can enhance the oral liver targeting effect of PFD, and effectively improve the ...
Zhimei Cheng, Shan Xu, Yi Lei, Huizhou He, Runbin Sun, Xingle Jin, Cheneryu Huang, Yuhao Zheng, Jianqing Peng, Lei Tang, Peng Luo, Yi Chen, Shuai Zhang   +12 more
wiley   +1 more source

Dopplerfluxometria das artérias renais: valores normais das velocidades sistólica e diastólica e do índice resistivo nas artérias renais principais Renal arteries Dopplerfluxometry: normal systolic and diastolic flow velocities and resistive index values in the main renal arteries

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006
Dopplerfluxometry of renal arteries has been used to estimate renal perfusion in humans. The aim of this study was to use Dopplerfluxometry technique to calculate the resistive index of main renal arteries in dogs, measuring their systolic and diastolic ...
M.B. Melo, J.C.C. Veado, E.F. Silva, S.M. Moreira, L.M.F. Passos   +4 more
doaj   +1 more source

Unexpected presentation and surgical salvage of transplant renal artery dissection caused by vascular clamping: a case report

BMC Nephrology, 2020
Background Transplant renal artery dissection is a rare and serious event that can cause allograft dysfunction and activation of the renin–mediated renovascular hypertension.
Shunta Hori, Tatsuo Yoneda, Mitsuru Tomizawa, Kazuki Ichikawa, Yosuke Morizawa, Yasushi Nakai, Makito Miyake, Kiyohide Fujimoto   +7 more
doaj   +1 more source

Choroidal image analysis for OCT image sequences with applications in systemic health [PDF]

The choroid, a highly vascular layer behind the retina, is an extension of the central nervous system and has parallels with the renal cortex, with blood flow far exceeding that of the brain and kidney. Thus, there has been growing interest of choroidal blood flow reflecting physiological status of systemic disease.
arxiv   +1 more source