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Modeling Flow in Cerebral Aneurysm After Coils Embolization Treatment: A Realistic Patient-Specific Porous Model Approach
Springer Science and Business Media LLC - Tập 14 - Trang 115-128 - 2022
Computational fluid dynamics (CFD) has been used to evaluate the efficiency of endovascular treatment in coiled cerebral aneurysms. The explicit geometry of the coil mass cannot typically be incorporated into CFD simulations since the coil mass cannot be reconstructed from clinical images due to its small size and beam hardening artifacts. The existing methods use imprecise porous medium represent...... hiện toàn bộ
A Virtual Comparison of the eCLIPs Device and Conventional Flow-Diverters as Treatment for Cerebral Bifurcation Aneurysms
Springer Science and Business Media LLC - Tập 10 - Trang 508-519 - 2019
Effective, consistent, and complication-free treatment of cerebral bifurcation aneurysms remains elusive despite a pressing need, with the majority of lesions presenting in such locations. Current treatment options focus either on aneurysm coil retention, supported by a stent-like device positioned in the parent vessel lumen, or intrasaccular devices that disrupt flow within the aneurysm dome. A t...... hiện toàn bộ
Performance Evaluation of New-Generation Pulse Oximeters in the NICU: Observational Study
Springer Science and Business Media LLC - Tập 6 - Trang 383-391 - 2015
This crossover observational study compares the data characteristics and performance of new-generation Nellcor OXIMAX and Masimo SET SmartPod pulse oximeter technologies. The study was conducted independent of either original equipment manufacturer (OEM) across eleven preterm infants in a Neonatal Intensive Care Unit (NICU). The SmartPods were integrated with Dräger Infinity Delta monitors. The De...... hiện toàn bộ
A Comparison of Five Algorithms for Fetal Magnetocardiography Signal Extraction
Springer Science and Business Media LLC - Tập 9 - Trang 483-487 - 2018
Fetal magnetocardiography (fMCG) provides accurate and reliable measurements of electrophysiological events in the fetal heart and is capable of studying fetuses with congenital heart diseases. A variety of techniques exist to extract the fMCG signal with the demand for non-invasively obtained fetal cardiac information. To the best of our knowledge, there is no comparative study published in the f...... hiện toàn bộ
Coupled Hemodynamics and Oxygen Diffusion in Abdominal Aortic Aneurysm: A Computational Sensitivity Study
Springer Science and Business Media LLC - Tập 12 - Trang 166-182 - 2021
Abdominal Aortic Aneurysms (AAA) have extreme medical prevalence as an asymptomatic cause of death in developed countries. The probability of AAA rupture is promoted by the localized oxygen loss in the AAA wall which occurs in part because many AAAs contain a layer called intraluminal thrombus (ILT). Considering this strong clinical association, the purpose of this study is to investigate the key ...... hiện toàn bộ
The Impact of the Right Coronary Artery Geometric Parameters on Hemodynamic Performance
Springer Science and Business Media LLC - Tập 10 - Trang 257-270 - 2019
Coronary artery geometry can have a significant impact in the hemodynamic behavior of coronary blood flow, influencing atherosclerotic plaque formation. The present work focuses on, through a statistical study, the connection between several geometric parameters of the right coronary artery—ostium cross-sectional area, angles between the common trunk and the side-branches, tortuosity, curvature an...... hiện toàn bộ
The Fluid-Dynamics of Endo Vascular Aneurysm Sealing (EVAS) System failure
Springer Science and Business Media LLC - Tập 12 - Trang 300-310 - 2021
The main objective of this work is to investigate hemodynamics phenomena occurring in EVAS (Endo Vascular Aneurysm Sealing), to understand if and how they could lead to type 1a endoleaks and following re-intervention. To this aim, methods based on computational fluid mechanics are implemented as a tool for checking the behavior of a specific EVAS configuration, starting from the post-operative con...... hiện toàn bộ
Influences of Stent Design on In-Stent Restenosis and Major Cardiac Outcomes: A Scoping Review and Meta-Analysis
Springer Science and Business Media LLC - Tập 13 - Trang 147-169 - 2021
Thanks to the developments in implantable biomaterial technologies, invasive operating procedures, and widespread applications especially in vascular disease treatment, a milestone for interventional surgery was achieved with the introduction of vascular stents. Despite vascular stents providing a solution for embolisms, this technology includes various challenges, such as mechanical, electro-chem...... hiện toàn bộ
Design Method of Self-expanding Stent Suitable for Diverse Clinical Manifestation Based on Mechanical Properties
Springer Science and Business Media LLC - Tập 2 - Trang 361-371 - 2011
Stent placement has received a great deal of attention as a minimally invasive procedure for treating, for example, vascular stenotic lesions associated with coronary atherosclerosis. However, the long-term placement of stents can lead to the severe problem of in-stent restenosis in blood vessels. In-stent restenosis results from neointimal thickening from the hyperplasia of smooth muscle cells, c...... hiện toàn bộ
Development of a Physical Windkessel Module to Re-Create In Vivo Vascular Flow Impedance for In Vitro Experiments
Springer Science and Business Media LLC - - 2011
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