...: Why Computational Fluid Dynamics Alone Cannot Solve the Equation ,” Neurosurg. Focus , 47 ( 1 ), p. E15 . 10.3171/2019.4.FOCUS19181 [5] Steinman , D. A. , and Pereira , V. M. , 2019 , “ How Patient Specific Are Patient-Specific Computational Models of Cerebral Aneurysms...

... (CTA) images, and hemorheological parameters including time-averaged wall shear stress (TAWSS), oscillatory shear index (OSI) and relative residence time (RRT) were analyzed by computational fluid dynamics (CFD). The results showed that iliac vein stenosis could significantly increase the wall shear...

... highlight the use of engineered cellularized aneurysm models for connecting computational fluid dynamics to the underlying endothelial biology that mediates disease. hemodynamics computational fluid dynamics shear stress National Institutes of Health 10.13039/100000002 UL1TR002319...

...-mail:  amirz013@fiu.edu 1 Corresponding author. e-mail:  sramaswa@fiu.edu 06 08 2021 16 05 2022 16 06 2022 computational fluid dynamics calcific aortic valve disease non-Newtonian fluid wall shear stress oscillatory shear index Blood is a well-known shear thinning non...

...Ayat Nada; Mahmoud A. Fakhr; Mohamed Tarek I. El-Wakad; Mohammed A. Hassan This research aimed to examine the impact of a proposed flow stent (PFS) on different abdominal artery shapes. For that purpose, a finite element-based model using the computational fluid dynamics (CFD) method is developed...

... topological skeleton. Computational fluid dynamics (CFD) simulations were performed in three stented human coronary artery geometries reconstructed from clinical images. The selected cases presented stents with different designs (i.e., two contemporary drug-eluting stents and one bioresorbable scaffold...

... is unclear. Idealized LM coronary arteries with 34 different intermediate stenoses were created and categorized (Medina) as single and multiple lesion groups. Computational fluid dynamics modeling was performed with physiologic boundary conditions using an open-source software ( simvascular 1 ) to solve...

... fluid (CSF) near the foramen magnum (FM). We used computational fluid dynamics (CFD) to compute patient-specific resistance to CSF motion in the spinal canal for CMI patients to determine its accuracy in predicting CAH. Fifty-one symptomatic CMI patients with cerebellar tonsillar position (CTP) ≥ 5 mm...

... or different regarding their impacts on coronary hemodynamics. The purpose of this study was to compare the hemodynamic effects of coronary stenosis and MB using experimental and computational fluid dynamics (CFD) approaches. For CFD modeling, three MB patients with different levels of lumen obstruction, mild...

... coiling (SAC). Therefore, we performed computational fluid dynamics (CFD) analysis of the blood flow in four bifurcation aneurysms focusing on the stent healing period found in SAC as a two-step maneuver. Our results show that by changing the local vasculature, the intra-aneurysmal hemodynamics changes...

... by computational fluid dynamics (CFD) simulations has become conventional, convergence of hemolysis calculations is also essential. In this paper, convergence of the power-law hemolysis model is compared for simple flows, including pathlines with exponentially increasing and decreasing stress, in gradually...

... and personalized dosimetry. Computational fluid dynamics (CFD) simulations were performed in a 3D hepatic arterial tree model segmented from cone-beam CT angiographic data obtained from a patient with hepatocellular carcinoma (HCC). The microsphere trajectories were predicted from the velocity field. 90 Y dose...

... in computational fluid dynamics (CFD) simulations of veins with CVCs. In this study, blood was assumed to be an incompressible, laminar, homogeneous, and non-Newtonian fluid, and the corresponding governing equations are given as follows: (1) ρ d u d t = − ∇ p + μ Δ u (2) ∇ ⋅ u...

... of the metamodel and in vivo measured pressure drops, the mean bias (−0.2 ± 13.7 mmHg) and the coefficient of determination (R 2 = 0.80) were as good as of the original 2D computational fluid dynamics (CFD) model. UQ results of the 2D and metamodel were comparable. Estimation of the uncertainty interval using...

... dissection and demonstrates that the coverage of LSA has a considerable impact on the important hemodynamic parameters. aortic dissection thoracic endovascular aortic repair left subclavian artery coverage computational fluid dynamics fluid–structure interaction Windkessel model Aortic...

... in a patient-specific aorta to investigate mixing and dispersion of contrast in the aortic arch (AA) and to compare the TDCs in the coronary ostium and the descending aorta. Here, we examine the validity of the use of TDC in the descending aorta as a surrogate for the AIF. Computational fluid dynamics (CFD...

... to disturbances affecting the transvalvular blood flow, which could hamper the correct measurement of peak velocities. Such disturbances would characterize highly asymmetric stenotic configurations of the BMV. To test this hypothesis, we exploited computational fluid-dynamic (CFD) analyses, which allow...

...Digvijay S. Rawat; Mathieu Pourquie; Christian Poelma Computational fluid dynamics (CFD) is a powerful method to investigate aneurysms. The primary focus of most investigations has been to compute various hemodynamic parameters to assess the risk posed by an aneurysm. Despite the occurrence...

...% TE in the pulsatile simulations, warranting further studies to improve the mathematical model and experimental validation. computational fluid dynamics blood flow drug targeting nanoparticles controlled release Targeted drug delivery is a technique of delivering drugs to specific...

..., and 1.49 mm versus 68 mm 2 , 0.22 N, and 1.01 mm, respectively). Hemodynamics were simulated using computational fluid dynamics (CFD), with four cases for each patient-specific vein: (1) IVC only, (2) IVC with a placed filter, (3) IVC with a placed filter and model embolus, all at resting flow conditions...