Spatial visualization of the heart in case of ectopic beats and fibrillation

Sándor M. Szilágyi, László Szilágyi, Zoltán Benyó

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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.

Original languageEnglish
Title of host publicationAdvances in Image and Video Technology - Second Pacific Rim Symposium, PSIVT 2007, Proceedings
Pages548-561
Number of pages14
Publication statusPublished - Dec 1 2007
Event2nd IEEE Pacific Rim Symposium on Video and Image Technology, PSIVT 2007 - Santiago, Chile
Duration: Dec 17 2007Dec 19 2007

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4872 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other2nd IEEE Pacific Rim Symposium on Video and Image Technology, PSIVT 2007
CountryChile
CitySantiago
Period12/17/0712/19/07

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Keywords

  • Heart wall movement analysis
  • Parallel processing
  • Spatial visualization

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

Cite this

Szilágyi, S. M., Szilágyi, L., & Benyó, Z. (2007). Spatial visualization of the heart in case of ectopic beats and fibrillation. In Advances in Image and Video Technology - Second Pacific Rim Symposium, PSIVT 2007, Proceedings (pp. 548-561). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 4872 LNCS).