... 08 2024 06 09 2024 computational fluid dynamics bioprosthetic valve pulmonary artery valve orientation hemodynamics Pulmonary valve regurgitation is the major hemodynamic sequela of a number of repaired congenital heart diseases, such as tetralogy of Fallot (TOF...

... loop and simulated with various computational fluid dynamics (CFD) models. The tests benchmarked the CFD tools for further enhancement of the CPAD design. Recommended Reynolds-Averaged Navier–Stokes (RANS) CFD approaches for the development of conventional ventricular assist devices (VAD) were found...

...@uabmc.edu e-mail:  sbhatt@uabmc.edu 1 Corresponding author. e-mail:  raghav@auburn.edu 15 02 2023 19 06 2023 14 07 2023 airflow simulations patient-specific trachea computational fluid dynamics COPD Foundation 10.13039/100008184 NCT00608764 National...

.../S0962492917000046 [4] Berg , P. , Saalfeld , S. , Voß , S. , Beuing , O. , and Janiga , G. , 2019 , “ A Review on the Reliability of Hemodynamic Modeling in Intracranial Aneurysms: Why Computational Fluid Dynamics Alone Cannot Solve the Equation ,” Neurosurg. Focus , 47...

... (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. Fig. 2 Endothelial morphology in aneurysm regions under flow. Representative images of straight ( a ) and curved ( b ) vessel geometries...

... = computer-aided design CFD = computational fluid dynamics FEA = finite element analysis GPU = graphical processing unit OSI = oscillatory shear index Re = Reynolds number STL = stereolithography WSS = wall shear stress References [1] Fåhræus , R...

...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. References [1] Gunawansa , N. , Sudusinghe , D. H. , and Wijayaratne , D. R. , 2018 , “ Hemodialysis Catheter-Related Central Venous Thrombosis: Clinical Approach to Evaluation and Management ,” Ann. Vasc. Surg...

... 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...

... endovascular aortic repair left subclavian artery coverage computational fluid dynamics fluid–structure interaction Windkessel model In the last several decades, some clinical researchers have investigated the impact of LSA coverage. Hausegger et al. [ 5 ] reported that intentional occlusion...

... 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...

... bileaflet mechanical valves computational fluid dynamics fluid–structure interaction Prosthetic valve thrombosis (PVT) is a rare and serious complication that affects prosthetic heart valves (PHVs). PVT consists in a thrombus or pannus formation that may hinder the leaflet movement, increasing...