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dc.contributor.authorFortuny Anguera, Gerard
dc.contributor.authorHerrera, Blas
dc.contributor.authorMarimón, Francesc
dc.contributor.authorMarcé Nogué, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria
dc.identifier.citationFortuny, G. [et al.]. Determining the constitutive parameters of the human femoral vein in specific patients. A: International Conference on Computational Plasticity. "XI International Conference on Computational Plasticity". Barcelona: International Center for Numerical Methods in Engineering., 2011, p. 1-7.
dc.description.abstractThis study suggests a method for computing the constitutive model for veins in vivo from clinically registered ultrasound images. The vein is modelled as a hyperelastic, incompressible, thin-walled cylinder and the membrane stresses are computed using strain energy. The material parameters are determined by tuning the membrane stress to the stress obtained by enforcing global equilibrium. In addition to the mechanical model, the study also suggests a preconditioning of the pressure-radius signal. The preconditioning computes an average pressure-radius cycle from all consecutive cycles in the registration and removes, or reduces undesirable disturbances. In order to overcome this problem, an approach is proposed that allows constitutive equations to be determined from clinical data by means of reasonable assumptions regarding in situ configurations and stress states of vein walls. The approach is based on a two-dimensional Fung-type stored-energy function that captures the characteristic nonlinear and anisotropic responses of veins.
dc.format.extent7 p.
dc.publisherInternational Center for Numerical Methods in Engineering.
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Electrònica biomèdica
dc.subjectÀrees temàtiques de la UPC::Ciències de la salut::Medicina::Diagnòstic per la imatge
dc.subject.lcshDiagnostic ultrasonic imaging
dc.subject.otherFemoral vein
dc.subject.otherConstitutive equations
dc.subject.otherVenous live tissue
dc.subject.otherParameter identification
dc.titleDetermining the constitutive parameters of the human femoral vein in specific patients
dc.typeConference report
dc.subject.lemacImatges ultrasonores
dc.subject.lemacTromboembolisme -- Diagnòstic
dc.contributor.groupUniversitat Politècnica de Catalunya. LITEM - Laboratori per a la Innovació Tecnològica d'Estructures i Materials
dc.identifier.dlB. 31725-2011
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorFortuny, G.; Herrera, B.; Marimón, F.; Marce, J.
upcommons.citation.contributorInternational Conference on Computational Plasticity
upcommons.citation.publicationNameXI International Conference on Computational Plasticity

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