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The Influence of Different Types of St..

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On stent-graft models in thoracic aortic..

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Circumferential and longitudinal cyclic ..

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A computational fluid dynamic study of s..

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Effects of flat, parabolic and realistic..

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The Influence of Different Types of Stent Grafts on Aneurysm Neck Dynamics after Endovascular Aneurysm Repair

（作者：J.W. van Keulen, K.L. Vincken, J. van Prehn, J.L. Tolenaar, L.W. Bartels, M.A. Viergever, F.L. M 刊发时间：2009-10）（查看：5900 下载：15）

概述：Objective: Dynamic imaging provides insight into aortic shape changes throughout the cardiac cycle. These changes may be important for proximal aortic stent graft fixation, sealing and durability. The objective of this study is to analyse the influence of different types of stent grafts on dynamic changes of the aneurysm neck. Methods: Pre- and postoperative electrocardiography (ECG)-gated computed tomographic angiography (CTA) scans were obtained in 30 abdominal aortic aneur

Circumferential and longitudinal cyclic strain of the human thoracic aorta Age-related changes.pdf

（作者：Tina M. Morrison 刊发时间：2009-04）（查看：5280 下载：8）

概述：Objective: We developed a novel method using anatomic markers along the thoracic aorta to accurately quantify longitudinal and circumferential cyclic strain in nondiseased thoracic aortas during the cardiac cycle and to compute age-related changes of the human thoracic aorta. Methods: Changes in thoracic aorta cyclic strains were quantified using cardiac-gated computed tomography image data of 14 patients (aged 35 to 80 years) with no visible aortic pathology (aneurysms or dissection). We me

Effects of flat, parabolic and realistic steady flow inlet profiles on idealised and realistic stent graft fits through Abdominal Aortic Aneurysms (AAA).pdf

（作者：Liam Morris[|] 刊发时间：2006-01）（查看：4809 下载：8）

概述：Computational fluid dynamics modelling of bifurcated stent grafts positioned across Abdominal Aortic Aneursysms (AAAs) is influenced significantly by the boundary conditions and geometry. To assess these influencing factors, simulations using three different steady inlet profiles and two geometries were run. The steady velocity inlet profiles (flat, parabolic and realistic) were used as input boundary conditions with a constant pressure outlet for each model. The geometry of an out-of-plane r

On stent-graft models in thoracic aortic endovascular repair Acomputational investigation of the hemodynamic factors.pdf

（作者：George S.K. Funga,∗,[|] 刊发时间：2008-01）（查看：4536 下载：21）

概述：In treating thoracic aortic diseases, endovascular repair involves the placement of a self-expanding stent-graft system across the diseased thoracic aorta. Computational fluid dynamic techniques are applied to model the blood flow by numerically solving the three-dimensional continuity equation and the time-dependent Navier–Stokes equations for an incompressible fluid. From our results, high blood pressure level and high systolic slope of the pressure waveform will significantly increase the

A computational fluid dynamic study of stent graft remodeling after endovascular repair of thoracic aortic dissections

（作者：Steven W.F.Cheng 刊发时间：2008-05）（查看：4339 下载：16）

概述：Significant stent graft remodeling commonly occurs after endovascular repair of thoracic aortic dissections because of continuing expansion of the true lumen.A suboptimal proximal landing zone, minimal oversizing, and lack of a healthy distal attachment site are unique factors affecting long-term stent graft stability. We used computational fluid dynamic techniques to analyze the biomechanical factors associated with stent graft remodeling in these patients.