Results 171 to 180 of about 43,354 (300)

Investigation of particle penetration in a nasal maxillary ostium with optimised T-junction geometry and pulsatile flow. [PDF]

Biomech Model Mechanobiol
Warfield-McAlpine P, Fletcher DF, Inthavong K.   +2 more
europepmc   +1 more source

Effects of Pulsatile Flow Rate and Shunt Ratio in Bifurcated Distal Arteries on Hemodynamic Characteristics Involved in Two Patient-Specific Internal Carotid Artery Sidewall Aneurysms: A Numerical Study. [PDF]

Bioengineering (Basel), 2022
Yi H, Johnson M, Bramlage LC, Ludwig B, Yang Z.   +4 more
europepmc   +1 more source

Device‐Induced Blood Damage in Pump‐Assisted Circulation: A Comparative Study of HeartMate III and BrioVAD Pumps

Artificial Organs, EarlyView.
Shear‐induced blood damage—including hemolysis, platelet and neutrophil injury, and von Willebrand factor (vWF) degradation—was evaluated for the BrioVAD and HM3 using an in vitro circulatory loop under clinically relevant conditions. Across 15 biomarkers (n > 6 per group), no significant differences were observed between the two devices.
Wenji Sun, Kiersten P. Clark, Douglas Tran, John C. Vandenberge, Nancy Kim, Shigang Wang, Anik Tarafder, Randy Perez, Bartley P. Griffith, Dong Han   +9 more
wiley   +1 more source

How I do it: simple ad-hoc pulsatile pump model for realistic microsurgical training under pulsatile flow. [PDF]

Acta Neurochir (Wien)
Parvin R, El-Hajj VG, Staartjes VE, Ricciardi L, Gandia-Gonzalez M, Feijoo PG, Núñez MTF.   +6 more
europepmc   +1 more source

Phase coupling between eye and brain pulsations is bidirectional and modulated by the parasympathetic system – An fMREye study

Acta Ophthalmologica, EarlyView.
Abstract Purpose Physiological pulsations driven by cardiac, respiratory, and vasomotor activity are essential for solute transport within perivascular and perineural cerebrospinal fluid (CSF) pathways that support brain and eye clearance systems. Previous studies have shown that parasympathetic blockade significantly reduces ocular pulsation power and
Ebrahimi Seyed‐Mohsen, Väyrynen Tommi, Huotari Niko, Saarela Ville, Honkamo Marja, Helakari Heta, Järvelä Matti, Korhonen Vesa, Raitamaa Lauri, Kiviniemi Vesa   +9 more
wiley   +1 more source

Successful Bentall Surgery in a Moyamoya Disease Patient with Intraoperative Brain Protection via IABP-Induced Pulsatile Flow and CO₂ Management during Cardiopulmonary Bypass. [PDF]

Surg Case Rep
Handa K, Ohata T, Sakamoto T, Arai Y, Fujimoto T, Maeda A, Nakamura T, Kuratani T.   +7 more
europepmc   +1 more source

Optimised passive marker device visibility and automatic marker detection for 3-T MRI-guided endovascular interventions: a pulsatile flow phantom study. [PDF]

Eur Radiol Exp, 2022
Nijsink H, Overduin CG, Brand P, De Jong SF, Borm PJA, Warlé MC, Fütterer JJ.   +6 more
europepmc   +1 more source

Large-Eddy Simulation of physiological pulsatile non-newtonian flow in a channel with double constriction

, 2010
Physiological pulsatile flow in a 3D model of arterial double stenosis, using the modified Power-law blood viscosity model, is investigated by applying Large Eddy Simulation (LES) technique.
Molla, Md. Mamun, Saha, Suvash C., Wang, Bing-Chen   +2 more
core  

Wasteosomes accumulate in periventricular white matter hyperintensities and exhibit complex relationships with mixed pathology, sclerotic index, and perivascular space

Brain Pathology, EarlyView.
In a mixed diagnostic cohort of pathologically diagnosed Alzheimer's disease, cerebrovascular disease, mixed pathology, and control tissue, we connected the histopathological wasteosome profile in periventricular (PV) brain sections to 7T FLAIR‐MRI confirmed PV white matter hyperintensities (WMHs), vascular stenosis and perivascular space size ...
Nikita Ollen‐Bittle, Isabella Boesgaard, Austyn Roseborough, Meaghan Frank, Qi Zhang, Stephen H. Pasternak, Robert Hammond, Shawn N. Whitehead   +7 more
wiley   +1 more source

Diagnosis of Growth Hormone Deficiency in Children: Comparative Performance of Arginine Versus Glucagon as the First Stimulation Test

Clinical Endocrinology, EarlyView.
ABSTRACT Objective Growth hormone deficiency (GHD) diagnosis typically requires the performance of two sequential stimulation tests. Glucagon stimulation test (GST) and arginine stimulation test (AST) are widely used. This study aimed to determine the most suitable order of tests.
David Shaki, Daria Shvarts, Eli Hershkovitz, Lior Carmon, Hazan Guy, Bachar Yoav, Alon Haim   +6 more
wiley   +1 more source