Development of a Large-Scale Computer Heart Model for Supporting Clinical Studies of Arrhythmias

Abstract

Although a large number of studies on cardiac the electrical properties have been conducted, it remains difficult to integrate all fragmented data into one unified framework. As an approach to this, we developed a large-scale (6 x 10(6) elements) three-dimensional simulator of cardiac electrical activity based on human ventricular geometry and experimentally derived ionic channel models. This simulator has the advantages over previous simulators in that ventricular fibrillation can be induced with clinical programmed extrastimulation, fibrillation can be induced more easily by extrastimulation at right ventricular outflow tract as in clinical situation, and it is possible to examine the contribution of early afterdepolarization to arrhythmogenecity in patients with e.g., sit long QT syndrome. These advantages indicate that our simulator is useful in supporting a wide range of clinical studies of arrhythmias.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA411193

Entities

People

  • K. Nakazawa
  • M. Inagaki
  • M. Sugimachi
  • T. Kawada
  • T. Suzuki

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Cardiac Arrhythmias
  • Cardiovascular Diseases
  • Channel Models
  • Computational Science
  • Computer Simulations
  • Computers
  • Differential Equations
  • Electrical Properties
  • Experimental Data
  • Geometry
  • Heart
  • Myocardial Ischemia
  • Parallel Computing
  • Parallel Processing
  • Simulations
  • Simulators
  • Three Dimensional

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Systems Analysis and Design
  • Trauma or Military Medicine