Identification of artery wall stiffness: In vitro validation and in vivo results of a data assimilation procedure applied to a 3D fluid-structure interaction model

  • Cristóbal Bertoglio
  • , David Barber
  • , Nicholas Gaddum
  • , Israel Valverde
  • , Marcel Rutten
  • , Philipp Beerbaum
  • , Philippe Moireau
  • , Rodney Hose
  • , Jean Frédéric Gerbeau

Research output: Contribution to journalArticlepeer-review

Abstract

We consider the problem of estimating the stiffness of an artery wall using a data assimilation method applied to a 3D fluid-structure interaction (FSI) model. Recalling previous works, we briefly present the FSI model, the data assimilation procedure and the segmentation algorithm. We present then two examples of the procedure using real data. First, we estimate the stiffness distribution of a silicon rubber tube from image data. Second, we present the estimation of aortic wall stiffness from real clinical data.

Original languageEnglish
Pages (from-to)1027-1034
Number of pages8
JournalJournal of Biomechanics
Volume47
Issue number5
DOIs
Publication statusPublished - 21 Mar 2014
Externally publishedYes

Keywords

  • Coarctation of the aorta
  • Data assimilation
  • Experimental validation
  • Fluid-structure interaction
  • Medical imaging
  • Stiffness estimation

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