Interactive Particle Tracing with Cumulative Blood Damage Computation for Ventricular Assist Devices

Dennis Kempin, Peter Schumacher, Gernot Ziegler and Tobias Rick
6. GI-Workshop Virtuelle und Erweiterte Realit├Ąt, 2009

Abstract. This paper presents the results of a student research project and deals with the interactive particle tracing of derived quantities. Additionally to common vector field advection a complex model for the computation of blood damage in a ventricular assist device is computed for every particle. Thereby, we not only depict hydraulic flow struc- tures but furthermore convey information like deformation and stress of blood particles. The employed blood damage model models the morphological deformation of blood cells along pathlines. Due to the large amount of simulation data, previous work on interactive blood damage analysis for ventricular assist devices relied on the precomputation of path- lines along the flow field of the artificial pump with an incremental computation of the blood damage. Therefore, the main contribution of this work lies in the interactive computation of both, particle tracing and blood damage computation based on an implementation on a parallel manycore compute platform. However, due to memory limitations we operate on a downsampled version of the original grid. Nevertheless, the interactivity of our proposed technique reveals important flow structures and especially enables the exploration in virtual reality systems and use of natural interaction techniques with the complex three-dimensional data according to the virtual windtunnel paradigm.

Bibtex entry
author={Dennis Kempin and Peter Schumacher and Gernot Ziegler and Tobias Rick},
title={Interactive Particle Tracing with Cumulative Blood Damage Computation for Ventricular Assist Devices},
booktitle={6. GI-Workshop Virtuelle und Erweiterte Realit\"at},