Development of a model of the infracted canine heart that predicts arrhythmia generation from specific cardiac geometry and scar distribution

H. J. Arevalo, P. A. Helm, N. A. Trayanova

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

Abstract

The role of the 3D infarct structure in arrhythmia generation and maintenance in hearts with myocardial infarction cannot be fully elucidated through experimental techniques alone. Our aim was to develop methodology to construct a high resolution computational model of the infarcted canine heart using magnetic resonance (MRI) and diffusion tensor images (DTI) and then to use the resulting model to study post-infarction ventricular tachycardia (VT). Segmentation of the MRI and DTI stacks using image processing techniques provided accurate representations of the myocardium, the infarct scar, and the border zone (BZ) surrounding the scar. Realistic electrophysiological properties were assigned to each region. Simulations using the novel model revealed that postinfarction VT is initiated and maintained by reentrant circuits located within the BZ.

Original languageEnglish (US)
Title of host publicationComputers in Cardiology 2008, CAR
Pages497-500
Number of pages4
DOIs
StatePublished - 2008
EventComputers in Cardiology 2008, CAR - Bologna, Italy
Duration: Sep 14 2008Sep 17 2008

Publication series

NameComputers in Cardiology
Volume35
ISSN (Print)0276-6574

Other

OtherComputers in Cardiology 2008, CAR
Country/TerritoryItaly
CityBologna
Period9/14/089/17/08

ASJC Scopus subject areas

  • Computer Science Applications
  • Cardiology and Cardiovascular Medicine

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