Quantitative evaluation of patient-specific conforming hexahedral meshes of abdominal aortic aneurysms and intraluminal thrombus generated from MRI

Tarjuelo Gutierrez, Jaime and Rodríguez Vila, Borja and Pierce, David M. and Fastl, Thomas and Gómez Aguilera, Enrique J. (2014). Quantitative evaluation of patient-specific conforming hexahedral meshes of abdominal aortic aneurysms and intraluminal thrombus generated from MRI. In: "XIII Mediterranean Conference on Medical and Biological Engineering and Computing (MEDICON 2013)", 25/09/2013 - 28/09/2013, Sevilla, Spain. pp. 210-213. https://doi.org/10.1007/978-3-319-00846-2_52.

Description

Title: Quantitative evaluation of patient-specific conforming hexahedral meshes of abdominal aortic aneurysms and intraluminal thrombus generated from MRI
Author/s:
  • Tarjuelo Gutierrez, Jaime
  • Rodríguez Vila, Borja
  • Pierce, David M.
  • Fastl, Thomas
  • Gómez Aguilera, Enrique J.
Item Type: Presentation at Congress or Conference (Article)
Event Title: XIII Mediterranean Conference on Medical and Biological Engineering and Computing (MEDICON 2013)
Event Dates: 25/09/2013 - 28/09/2013
Event Location: Sevilla, Spain
Title of Book: IFMBE Proceedings
Date: 2014
Volume: 41
Subjects:
Freetext Keywords: Magnetic resonance imaging, abdominal aortic aneurysm, intraluminal thrombus, conforming hexahedral meshes, finite element analysis
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A novel method for generating patient-specific high quality conforming hexahedral meshes is presented. The meshes are directly obtained from the segmentation of patient magnetic resonance (MR) images of abdominal aortic aneu-rysms (AAA). The MRI permits distinguishing between struc-tures of interest in soft tissue. Being so, the contours of the lumen, the aortic wall and the intraluminal thrombus (ILT) are available and thus the meshes represent the actual anato-my of the patient?s aneurysm, including the layered morpholo-gies of these structures. Most AAAs are located in the lower part of the aorta and the upper section of the iliac arteries, where the inherent tortuosity of the anatomy and the presence of the ILT makes the generation of high-quality elements at the bifurcation is a challenging task. In this work we propose a novel approach for building quadrilateral meshes for each surface of the sectioned geometry, and generating conforming hexahedral meshes by combining the quadrilateral meshes. Conforming hexahedral meshes are created for the wall and the ILT. The resulting elements are evaluated on four patients? datasets using the Scaled Jacobian metric. Hexahedral meshes of 25,000 elements with 94.8% of elements well-suited for FE analysis are generated.

More information

Item ID: 26107
DC Identifier: http://oa.upm.es/26107/
OAI Identifier: oai:oa.upm.es:26107
DOI: 10.1007/978-3-319-00846-2_52
Deposited by: Memoria Investigacion
Deposited on: 27 May 2014 16:46
Last Modified: 27 Apr 2016 07:16
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