3D quantification of wall shear stress and oscillatory index using finite-element interpolations in 4D flow MR data of the thoracic aorta
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چکیده
3D quantification of wall shear stress and oscillatory index using finite-element interpolations in 4D flow MR data of the thoracic aorta. Julio Andres Sotelo, Jesús Urbina, Cristian Tejos, Israel Valverde, Daniel Hurtado, and Sergio Uribe Biomedical Imaging Center, Pontificia Universidad Catolica de Chile, Santiago, Santiago, Chile, Electrical Engineering, Pontificia Universidad Catolica de Chile, Santiago, Santiago, Chile, Biomedical Imaging Center, Pontificia Universidad Catolica de Chile, Santiago, Chile, Radiology, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile, Electrical Engineering, Pontificia Universidad Catolica de Chile, Santiago, Chile, Pediatric Cardiology Unit, Hospital Virgen del Rocio, Sevilla, Spain, Division of Cardiovascular Physiology, Institute of Biomedicine Seville (IBIS), Hospital Universitario Virgen de Rocio/CSIC/University of Seville, Sevilla, Spain, Biomedical Engineering Group, Pontificia Universidad Catolica de Chile, Santiago, Chile, Structural Engineering, Pontificia Universidad Catolica de Chile, Santiago, Chile
منابع مشابه
3D quantification of wall shear stress using finite-element interpolations from 4D flow MR data in the Thoracic Aorta
Background Actual methods to quantify wall shear stress (WSS) are performed on reformatted 2D planes from 4D flow data sets. This approach has the inherit limitation that only a few planes are analyzed on specific locations of the aorta, even though the full 3D velocity field is usually available. Another problem with this approach is that the process of locating 2D planes manually is dependent...
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Background Different methods have been proposed to estimate Wall Shear Stress (WSS). Morgan and co-workers (J Thorac Cardiovasc Surg and Ann Biomed Eng 1998) used a finite difference scheme to quantify the WSS tensor. However, it is well known that finite-difference methods cannot effectively handle complex geometries, as those found in the cardiovascular system. To account for arbitrary cross-...
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