A patient-specific follow up study of the impact of thoracic endovascular repair (TEVAR) on aortic anatomy and on post-operative hemodynamics.

摘要: Abstract Thoracic endovascular repair (TEVAR) is a minimally invasive alternative to classical open-chest surgery for pathologies of thoracic aorta such as aneurysms or dissections. It consists the deployment one more endografts either exclude pressurization seal entry tears dissection. procedure, yet long-term efficacy still be demonstrated and analyzed, depending on geometry consequent hemodynamics remodeling induced by intervention. In this paper we consider TEVAR patient an extensive computational analysis pre-op, post-op, one-year follow up data. We focus both geometrical features like curvature, torsion area variations, well near-wall intravascular flow-related quantities (i.e., wall shear stress-based descriptors helicity). Comparison different morphologies indicates partial restoration normal flow in region interest, even though low WSS are present with associated risks. Overall, study demonstrates quantitative tools understanding impact TEVAR.