Abstract #0761

Geometrical Characterization of Marfan and Bicuspid Aortic Valve Patients Using Finite Element Methods

Julio Sotelo^1,2, Andrea Guala³, Lydia Dux-Santoy³, Aroa Ruiz-Muñoz³, Arturo Evangelista³, Joaquín Mura¹, Cristian Tejos^1,2,4, Daniel E Hurtado^4,5, José Rodríguez-Palomares³, and Sergio Uribe^1,4,6

¹Biomedical Imaging Center, Pontificia Universidad Católica de Chile, Santiago, Chile, ²Department of Electrical Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile, ³Department of Cardiology, Hospital Universitari Vall d´Hebron, Vall d´Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain, ⁴Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile, ⁵Department of Structural and Geotechnical Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile, ⁶Department of Radiology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile

BAV patients and patients with MFS are predisposed to develop geometrical changes in the aorta. The geometrical assessment of the aorta using MRI in these patients generates an operator dependency and variability given by the 2D planer reformatting of the data. In this work, we propose finite element Laplace formulation, which allows us to obtain 3D maps of geometrical parameters in the aorta, avoiding the 2D reformatting process of the MRI data. We apply our method on volunteers, BAV and MFS patients. Our method allows applying it to any type of volumetric segmentation from MR or CT.

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