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A computational method to assess initial stresses and unloaded configuration of patient-specific blood vessels

Joris Bols, Joris Degroote UGent, Bram Trachet UGent, Benedict Verhegghe, Patrick Segers UGent and Jan Vierendeels UGent (2011) Fifth international conference on advanced computational methods in engineering (ACOMEN 2011).
abstract
In the modelling process of cardiovascular diseases, one often comes across the numerical simulation of the blood vessel wall. When the vessel geometry is patient-specific and obtained in vivo via medical imaging, the stress distribution throughout the vessel wall is unknown. However, simulating the full physiological pressure load inside the blood vessel without incorporating initial stresses will result in an inaccurate stress distribution and an incorrect deformation of the vessel wall. In this work a computational method is formulated to recover the zero-pressure geometry or to include initial stresses into subject-specific blood vessels starting from medical images. Based on a fixed point method, the approximation of the zero-pressure geometry gets updated at each iteration. The formulation of this method allows for a simple implementation with black box structural solvers.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
inverse modelling, initial stress incorporation, medical images, prestress, patient-specific blood vessels, zero-pressure geometry
in
Fifth international conference on advanced computational methods in engineering (ACOMEN 2011)
editor
Michel Hogge, Roger Van Keer, Erik Dick UGent, Benny Malengier UGent, Marian Slodicka UGent, Eric Béchet, Christophe Geuzaine, Ludovic Noels and Jean-François Remacle
pages
10 pages
publisher
Université de Liège
place of publication
Liège, Belgium
conference name
5th International conference on Advanced COmputational Methods in ENgineering (ACOMEN 2011)
conference location
Liège, Belgium
conference start
2011-11-14
conference end
2011-11-17
ISBN
9782960114317
project
G.0275.08
project
BOF10/GOA/005
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3175807
handle
http://hdl.handle.net/1854/LU-3175807
date created
2013-03-27 10:13:08
date last changed
2017-01-02 09:53:26
@inproceedings{3175807,
  abstract     = {In the modelling process of cardiovascular diseases, one often comes across the numerical simulation of the blood vessel wall. When the vessel geometry is patient-specific and obtained in vivo via medical imaging, the stress distribution throughout the vessel wall is unknown. However, simulating the full physiological pressure load inside the blood vessel without incorporating initial stresses will result in an inaccurate stress distribution and an incorrect deformation of the vessel wall. In this work a computational method is formulated to recover the zero-pressure geometry or to include initial stresses into subject-specific blood vessels starting from medical images. Based on a fixed point method, the approximation of the zero-pressure geometry gets updated at each iteration. The formulation of this method allows for a simple implementation with black box structural solvers.},
  author       = {Bols, Joris and Degroote, Joris and Trachet, Bram and Verhegghe, Benedict and Segers, Patrick and Vierendeels, Jan},
  booktitle    = {Fifth international conference on advanced computational methods in engineering (ACOMEN 2011)},
  editor       = {Hogge, Michel and Van Keer, Roger and Dick, Erik and Malengier, Benny and Slodicka, Marian and B{\'e}chet, Eric and Geuzaine, Christophe and Noels, Ludovic and Remacle, Jean-Fran\c{c}ois},
  isbn         = {9782960114317},
  keyword      = {inverse modelling,initial stress incorporation,medical images,prestress,patient-specific blood vessels,zero-pressure geometry},
  language     = {eng},
  location     = {Li{\`e}ge, Belgium},
  pages        = {10},
  publisher    = {Universit{\'e} de Li{\`e}ge},
  title        = {A computational method to assess initial stresses and unloaded configuration of patient-specific blood vessels},
  year         = {2011},
}

Chicago
Bols, Joris, Joris Degroote, Bram Trachet, Benedict Verhegghe, Patrick Segers, and Jan Vierendeels. 2011. “A Computational Method to Assess Initial Stresses and Unloaded Configuration of Patient-specific Blood Vessels.” In Fifth International Conference on Advanced Computational Methods in Engineering (ACOMEN 2011), ed. Michel Hogge, Roger Van Keer, Erik Dick, Benny Malengier, Marian Slodicka, Eric Béchet, Christophe Geuzaine, Ludovic Noels, and Jean-François Remacle. Liège, Belgium: Université de Liège.
APA
Bols, Joris, Degroote, J., Trachet, B., Verhegghe, B., Segers, P., & Vierendeels, J. (2011). A computational method to assess initial stresses and unloaded configuration of patient-specific blood vessels. In Michel Hogge, R. Van Keer, E. Dick, B. Malengier, M. Slodicka, E. Béchet, C. Geuzaine, et al. (Eds.), Fifth international conference on advanced computational methods in engineering (ACOMEN 2011). Presented at the 5th International conference on Advanced COmputational Methods in ENgineering (ACOMEN 2011), Liège, Belgium: Université de Liège.
Vancouver
1.
Bols J, Degroote J, Trachet B, Verhegghe B, Segers P, Vierendeels J. A computational method to assess initial stresses and unloaded configuration of patient-specific blood vessels. In: Hogge M, Van Keer R, Dick E, Malengier B, Slodicka M, Béchet E, et al., editors. Fifth international conference on advanced computational methods in engineering (ACOMEN 2011). Liège, Belgium: Université de Liège; 2011.
MLA
Bols, Joris, Joris Degroote, Bram Trachet, et al. “A Computational Method to Assess Initial Stresses and Unloaded Configuration of Patient-specific Blood Vessels.” Fifth International Conference on Advanced Computational Methods in Engineering (ACOMEN 2011). Ed. Michel Hogge et al. Liège, Belgium: Université de Liège, 2011. Print.