Results 101 to 110 of about 1,114,187 (407)
On the Modelling and Numerical Simulation of Non-Newtonian Blood Flow in an Aneurysm [PDF]
arXiv, 2020 Cardiovascular diseases, specifically cerebral aneurysms, represent a major cause of morbidity and mortality, having a significant impact on the cost and overall status of health care. In the present work, we employ a haemorheological blood model originally proposed by Owens to investigate the haemodynamics of blood flow through an aneurytic channel ...
arxiv
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
Effects of the exercise in the cerebral blood flow and metabolism. A review [PDF]
, 2015 In recent years it has been shown that cerebral blood flow is affected by intense exercise, what may even lead to a reduction in the cognitive capacity.
Llana Belloch, Salvador +3 more
core +1 more source
Advanced Healthcare Materials, EarlyView.Biomimetic glycosaminoglycan analog hydrogels exhibit suitable and robust mechanical properties, as well as hemocompatibility and biocompatibility, making them ideal for the embolization of intracranial aneurysms. Notably, the hydrogel's environment‐selective swelling properties enable complete blockage of the aneurysm cavity while preventing ...
Sarit S. Sivan +8 more
wiley +1 more source
Transcranial Doppler ultrasonography (uses, limitations, and potentials): a review article
Egyptian Journal of Neurosurgery, 2021 Background The additional information that transcranial Doppler can provide as part of a multimodal imaging protocol in many clinical settings has not been evaluated.
Mohammed F.A Ali
doaj +1 more source
Motor‐Free Soft Robots for Cancer Detection, Surgery, and In Situ Bioprinting
Advanced Healthcare Materials, EarlyView.Novel motor‐free soft robots for cancer detection, surgery, and in situ bioprinting–are presented. This master‐slave system is constructed from soft fibrous syringe architectures, removing the need for electrical motors and complex control mechanisms, while reducing the physical tremors.
Chi Cong Nguyen +17 more
wiley +1 more source
Increased blood pressure variability upon standing up improves reproducibility of cerebral autoregulation indices [PDF]
arXiv, 2017 Dynamic cerebral autoregulation, that is the transient response of cerebral blood flow to changes in arterial blood pressure, is currently assessed using a variety of different time series methods and data collection protocols. In the continuing absence of a gold standard for the study of cerebral autoregulation it is unclear to what extent does the ...
arxiv
Cerebrovascular compliance within the rigid confines of the skull [PDF]
, 2018 © 2018 Zamir, Moir, Klassen, Balestrini and Shoemaker. Pulsatile blood flow is generally mediated by the compliance of blood vessels whereby they distend locally and momentarily to accommodate the passage of the pressure wave.
Balestrini, Christopher S. +4 more
core +2 more sources
Non‐Surgical, In‐Stent Membrane Bioelectronics for Long‐Term Intracranial Pressure Monitoring
Advanced Healthcare Materials, EarlyView.This image shows a sequence of long‐term intracranial pressure monitoring using non‐surgical, in‐stent membrane bioelectronics. Abstract Traditional intracranial pressure (ICP) monitoring methods, using intraventricular catheters, face significant limitations, including high invasiveness, discrete data, calibration complexities, and drift issues, which
Jimin Lee +9 more
wiley +1 more source
Анналы клинической и экспериментальной неврологии, 2017 Introduction. Millivolt Scale direct current potentials (DCP) registered from human scalp differ from other types of estimated electrical activity by closer association with cerebral energetic processes.
Vitaliy F. Fokin +4 more
doaj +1 more source