Publication detail

Finite element model of abdominal aortic aneurysm.

BURŠA, J. MUCHA, P. SKÁCEL, P.

Original Title

Finite element model of abdominal aortic aneurysm.

English Title

Finite element model of abdominal aortic aneurysm.

Type

conference paper

Language

en

Original Abstract

The paper presents creation of a 3D finite element model of AAA of an individual patient, based on its unloaded (reduced) geometry reconstructed from CT-scans. In most models pub-lished till now, the geometry of CT-scans is supposed to be unloaded while, in fact, a blood pressure is always acting in the aneurysm. Recent computer tomographs enable us to record the individual scans in a defined phase of the cardiac cycle, i.e. under a known value of the blood pressure. The paper presents a relatively simple method of how to find the unloaded geome-try that results in a shape corresponding to the CT scans when loaded by the original value of blood pressure. This process depends on the chosen constitutive model; isotropic hyperelas-tic constitutive behaviour of the tissues is supposed here.

English abstract

The paper presents creation of a 3D finite element model of AAA of an individual patient, based on its unloaded (reduced) geometry reconstructed from CT-scans. In most models pub-lished till now, the geometry of CT-scans is supposed to be unloaded while, in fact, a blood pressure is always acting in the aneurysm. Recent computer tomographs enable us to record the individual scans in a defined phase of the cardiac cycle, i.e. under a known value of the blood pressure. The paper presents a relatively simple method of how to find the unloaded geome-try that results in a shape corresponding to the CT scans when loaded by the original value of blood pressure. This process depends on the chosen constitutive model; isotropic hyperelas-tic constitutive behaviour of the tissues is supposed here.

Keywords

Aneurysm, abdominal aorta, finite element model, constitutive model, soft tissue.

RIV year

2009

Released

10.02.2010

Publisher

Springer

Location

Munich, Germany

ISBN

978-3-642-03897-6

Book

IFMBE Proceedings

Pages from

185

Pages to

188

Pages count

4

Documents

BibTex


@inproceedings{BUT29751,
  author="Jiří {Burša} and Petr {Mucha} and Pavel {Skácel}",
  title="Finite element model of abdominal aortic aneurysm.",
  annote="The paper presents creation of a 3D finite element model of AAA of an individual patient, based on its unloaded (reduced) geometry reconstructed from CT-scans. In most models pub-lished till now, the geometry of CT-scans is supposed to be unloaded while, in fact, a blood pressure is always acting in the aneurysm. Recent computer tomographs enable us to record the individual scans in a defined phase of the cardiac cycle, i.e. under a known value of the blood pressure. The paper presents a relatively simple method of how to find the unloaded geome-try that results in a shape corresponding to the CT scans when loaded by the original value of blood pressure. This process depends on the chosen constitutive model; isotropic hyperelas-tic constitutive behaviour of the tissues is supposed here.",
  address="Springer",
  booktitle="IFMBE Proceedings",
  chapter="29751",
  howpublished="electronic, physical medium",
  institution="Springer",
  year="2010",
  month="february",
  pages="185--188",
  publisher="Springer",
  type="conference paper"
}