Computational fluid dynamics investigation of chronic aortic dissection hemodynamics versus normal aorta.
作者： Christof Karmonik , Matthias Müller-Eschner , Sasan Partovi , Philipp Geisbüsch , Maria-Katharina Ganten
关键词: Aortic dissection 、 Hemodynamics 、 Medicine 、 Internal medicine 、 False lumen 、 Descending aorta 、 Pressure gradient 、 Cardiology 、 Aorta 、 Magnetic resonance imaging 、 Computational fluid dynamics
摘要: Objectives:To evaluate hemodynamic changes during aneurysmal dilatation in chronic type B aortic dissections compared to parameters the healthy aorta with use of computational fluid dynamics (CFD).Methods:True lumen (TL)/false (FL) dimensional changes, total pressure (TP), and wall shear stress (WSS) were evaluated at follow-up (FU) initial examination (IE) transient CFD simulation geometries derived from clinical image data inflow boundary conditions magnetic resonance images. The TL/FL gradient between ascending descending (DAo) maximum WSS site largest was values for aorta.Results:Hemodynamic FL included 77% reduction 69% TP reduction. Compared aorta, DAo a factor 1.4 higher TL 1.5 increased FU (1.6 1.7, respectively). M...
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