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Spatial Visualization of the Heart in Case of Ectopic Beats and Fibrillation

  • Sándor M. Szilágyi
  • László Szilágyi
  • Zoltán Benyó
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4872)

Abstract

This paper presents a dynamic heart model based on a parallelized space-time adaptive mesh refinement algorithm (AMRA). The spatial and temporal simulation method of the anisotropic excitable media has to achieve great performance in distributed processing environment. The accuracy and efficiency of the algorithm was tested for anisotropic and inhomogeneous 3D domains using ten Tusscher’s and Nygen’s cardiac cell models. During propagation of depolarization wave, the kinetic, compositional and rotational anisotrophy is included in the tissue, organ and torso model. The generated inverse ECG with conventional and parallelized algorithm has the same quality, but a speedup of factor 200 can be reached using AMRA modeling and single instruction multiple data (SIMD) programming of the video cards. These results suggest that a powerful personal computer will be able to perform a one-second long simulation of the spatial electrical dynamics of the heart in approximately five minutes.

Keywords

spatial visualization heart wall movement analysis parallel processing 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Sándor M. Szilágyi
    • 1
    • 2
  • László Szilágyi
    • 1
    • 2
  • Zoltán Benyó
    • 2
  1. 1.Sapientia - Hungarian Science University of Transylvania, Faculty of Technical and Human Science, Târgu-MureşRomania
  2. 2.Budapest University of Technology and Economics, Dept. of Control Engineering and Information Technology, BudapestHungary

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