Individual Research Project 01

The combined use of mesh morphing, force-feedback device and static reduced-order models for achieving real-time hemodynamic solution over geometric changes

Antonio Martinez Pascual – ESR 01
The objectives of the project are related to the combination of efficient mesh morphing, computational static reduced order models (SROMs) and haptic devices in order to manage and solve hemodynamic simulations over geometric changes of tissues. The combined use of the three tools is expected to allow real-time solution, visualization and feedback, in view of the Digital Twin MeDiTATe is planning to build. The assessment of this approach will be carried out and compared to dynamic results of ESR02. In the first part, starting from the definition of feasible variations of anatomical geometry and the corresponding control points to manage them, the variability will be reduced to a small set of parameters. The use of ANSYS/Fluent will be combined to RBF Morph and static ROM Builder in order to prepare and solve a design of experiments scenario able to produce a ROM for the hemodynamic solution. In a second part, the definition and implementation of the communication with the haptic device will be addressed in order to enhance the interactive spatial creation and displacement of control points on the anatomical tissue giving a real-time force-feedback to the user. This part will be completed by the study of possible real-time interaction to the static ROM to retrieve fast and reliable information about the hemodynamic simulations. The interaction is intended in two ways in order to actively update the geometry of the model and have a force-feedback (i.e. force and vibration) in order to enhance the interpretation of the results through an augmented probe (visual and haptic feedback).

Expected Results

  • Numerical algorithms for combining the use of ANSYS/Fluent, RBF Morph and ANSYS Static ROM Builder.
  • Numerical algorithms for real time interaction between anatomical soft tissue and haptic device.
  • A demonstrator including haptic device, computers and visualization theatre, as a part of the Digital Twin.
  • Comparison with the use of the ANSYS Dynamic ROM Builder (model developed by ESR02).
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 859836
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