Hemodynamic Changes by Flow Diverters in Rabbit Aneurysm Models
نویسندگان
چکیده
منابع مشابه
Hemodynamic changes by flow diverters in rabbit aneurysm models: a computational fluid dynamic study based on micro-computed tomography reconstruction.
BACKGROUND AND PURPOSE The effect of flow diverter (FD) on hemodynamic changes observed in aneurysms is inevitably affected by the actual structural configuration of deployed FD. We studied the resultant hemodynamic changes after implantation of FDs using computational fluid dynamic simulations based on micro-computed tomography reconstructions in rabbit aneurysm model. METHODS The FDs by mic...
متن کاملHemodynamic Changes Caused by Flow Diverters in Rabbit Aneurysm Models: Comparison of Virtual and Realistic FD Deployments Based on Micro-CT Reconstruction
Adjusting hemodynamics via flow diverter (FD) implantation is emerging as a novel method of treating cerebral aneurysms. However, most previous FD-related hemodynamic studies were based on virtual FD deployment, which may produce different hemodynamic outcomes than realistic (in vivo) FD deployment. We compared hemodynamics between virtual FD and realistic FD deployments in rabbit aneurysm mode...
متن کاملIntra-aneurysmal pressure and flow changes induced by flow diverters: relation to aneurysm size and shape.
BACKGROUND AND PURPOSE Effects of blood flow modification by flow diverters are observed to lead often to aneurysm thrombosis and reverse remodeling. For this process, to further understand the potential roles of intra-aneurysmal blood pressure changes and aneurysm morphologies, 23 patients were studied by numeric simulation. MATERIALS AND METHODS 3D imaging of aneurysms of different sizes an...
متن کاملFlow Diverters for Intracranial Aneurysms
Flow diverters (pipeline embolization device, Silk flow diverter, and Surpass flow diverter) have been developed to treat intracranial aneurysms. These endovascular devices are placed within the parent artery rather than the aneurysm sac. They take advantage of altering hemodynamics at the aneurysm/parent vessel interface, resulting in gradual thrombosis of the aneurysm occurring over time. Sub...
متن کاملHemodynamic changes in recurrent intracranial terminal aneurysm after endovascular treatment.
RATIONALE AND OBJECTIVES Multiple cases of recurrence of aneurysms after endovascular treatment have been reported. The purpose of the current hemodynamic study was to identify changes in shear stress and pressure associated with the recurrence of terminal intracranial aneurysms after endovascular occlusion. METHODS Using a finite element method, a pulsed flow with a non-Newtonian viscosity o...
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ژورنال
عنوان ژورنال: Stroke
سال: 2013
ISSN: 0039-2499,1524-4628
DOI: 10.1161/strokeaha.113.001202