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Gestural 3D Interaction with a Beating Heart: Simulation Visualization and Interaction
KTH, School of Computer Science and Communication (CSC), Numerical Analysis, NA (closed 2012-06-30). (Computational Technology Laboratory)ORCID iD: 0000-0002-1695-8809
KTH, School of Computer Science and Communication (CSC).
KTH, School of Computer Science and Communication (CSC).
KTH, School of Computer Science and Communication (CSC), Numerical Analysis, NA (closed 2012-06-30).
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2011 (English)In: Proceedings of SIGRAD 2011: Evaluations of Graphics and Visualization— Efficiency, Usefulness, Accessibility, Usability / [ed] Thomas Larsson, Lars Kjelldahl & Kai-Mikael Jää-Aro, Linköping University Electronic Press, 2011Conference paper, Published paper (Refereed)
Abstract [en]

The KTH School of Computer Science and Communication (CSC) established a strategic platform in Simulation-Visualization-Interaction (SimVisInt) in 2009, focused on the high potential in bringing together CSC core com-petences in simulation technology, visualization and interaction. The main part of the platform takes the form aset of new trans-disciplinary projects across established CSC research groups, within the theme of ComputationalHuman Modeling and Visualization: (i) interactive virtual biomedicine (HEART), (ii) simulation of human mo-tion (MOTION), and (iii) virtual prototyping of human hand prostheses (HAND). In this paper, we present recentresults from the HEART project that focused on gestural and haptic interaction with a heart simulation.

Place, publisher, year, edition, pages
Linköping University Electronic Press, 2011.
National Category
Computational Mathematics Human Computer Interaction
Identifiers
URN: urn:nbn:se:kth:diva-52832ISBN: 978-91-7393-008-6 (print)OAI: oai:DiVA.org:kth-52832DiVA: diva2:467842
Conference
SIGRAD 2011
Projects
Simulation Visualization Interaction (SimVisInt)
Note

QC 20120202

Available from: 2011-12-20 Created: 2011-12-20 Last updated: 2017-10-05Bibliographically approved
In thesis
1. Patient-Specific Finite Element Modeling of the Blood Flow in the Left Ventricle of a Human Heart
Open this publication in new window or tab >>Patient-Specific Finite Element Modeling of the Blood Flow in the Left Ventricle of a Human Heart
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Heart disease is the leading cause of death in the world. Therefore, numerous studies are undertaken to identify indicators which can be applied to discover cardiac dysfunctions at an early age. Among others, the fluid dynamics of the blood flow (hemodymanics) is considered to contain relevant information related to abnormal performance of the heart.This thesis presents a robust framework for numerical simulation of the fluid dynamics of the blood flow in the left ventricle of a human heart and the fluid-structure interaction of the blood and the aortic leaflets.We first describe a patient-specific model for simulating the intraventricular blood flow. The motion of the endocardial wall is extracted from data acquired with medical imaging and we use the incompressible Navier-Stokes equations to model the hemodynamics within the chamber. We set boundary conditions to model the opening and closing of the mitral and aortic valves respectively, and we apply a stabilized Arbitrary Lagrangian-Eulerian (ALE) space-time finite element method to simulate the blood flow. Even though it is difficult to collect in-vivo data for validation, the available data and results from other simulation models indicate that our approach possesses the potential and capability to provide relevant information about the intraventricular blood flow.To further demonstrate the robustness and clinical feasibility of our model, a semi-automatic pathway from 4D cardiac ultrasound imaging to patient-specific simulation of the blood flow in the left ventricle is developed. The outcome is promising and further simulations and analysis of large data sets are planned.In order to enhance our solver by introducing additional features, the fluid solver is extended by embedding different geometrical prototypes of both a native and a mechanical aortic valve in the outflow area of the left ventricle.Both, the contact as well as the fluid-structure interaction, are modeled as a unified continuum problem using conservation laws for mass and momentum. To use this ansatz for simulating the valvular dynamics is unique and has the expedient properties that the whole problem can be described with partial different equations and the same numerical methods for discretization are applicable.All algorithms are implemented in the high performance computing branch of Unicorn, which is part of the open source software framework FEniCS-HPC. The strong advantage of implementing the solvers in an open source software is the accessibility and reproducibility of the results which enhance the prospects of developing a method with clinical relevance.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2017. 51 p.
Series
TRITA-CSC-A, ISSN 1653-5723 ; 2017:21
Keyword
Finite element method, Arbitrary Lagrangian-Eulerian method, Fluid-Structure interaction, Contact model, parallel algorithm, blood flow, left ventricle, aortic valves, patient-specific heart model
National Category
Computational Mathematics
Identifiers
urn:nbn:se:kth:diva-215277 (URN)978-91-7729-566-2 (ISBN)
Public defence
2017-10-27, Fantum, F-huset, plan 5, KTH Campus, Lindstedtsvägen 24, Stockholm, 10:00 (English)
Opponent
Supervisors
Funder
Swedish Foundation for Strategic Research Swedish Research CouncilEU, European Research Council, 202984
Note

QC 20171006

Available from: 2017-10-06 Created: 2017-10-05 Last updated: 2017-10-09Bibliographically approved

Open Access in DiVA

No full text

Other links

http://web.media.mit.edu/~olwal/projects/research/heart/ioakeimidou_gestural_3d_heart_interaction_sigrad_2011.pdf

Authority records BETA

Hoffman, JohanSallnäs Pysander, Eva-LottaForsslund, Jonas

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Jansson, JohanIoakeimidou, FoteiniEricson, FinnSpühler, JeannetteHoffman, JohanSallnäs Pysander, Eva-LottaForsslund, Jonas
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Numerical Analysis, NA (closed 2012-06-30)School of Computer Science and Communication (CSC)Human - Computer Interaction, MDI (closed 20111231)
Computational MathematicsHuman Computer Interaction

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