Three-dimensional uniform grid modeling of electrical defibrillation on a data parallel computer. Academic Article uri icon

Overview

abstract

  • Finite element modeling has played an increasingly important role in the study of defibrillation. In order to model well the complex anatomical details, a large number of elements are required in the finite element grid, leading to a large set of equations that often cannot be solved effectively with the computational power of conventional computers. In this paper, we describe the use of a data parallel computer to provide the memory and reduction in solution time for solving these large finite element problems. Using a uniform grid and a nodal assembly technique, the discretized problem domain can be mapped efficiently to the parallel computer, allowing the solution of problems with over two million unknowns. The finite element algorithm for a three-dimensional inhomogeneous anisotropic body is described together with its parallel implementation. Test results for a canine torso model constructed from CT images are also presented.

publication date

  • May 1, 1995

Research

keywords

  • Electric Conductivity
  • Electric Countershock
  • Numerical Analysis, Computer-Assisted
  • Signal Processing, Computer-Assisted
  • Thorax

Identity

Scopus Document Identifier

  • 0029061947

PubMed ID

  • 7554850

Additional Document Info

volume

  • 25

issue

  • 3