Application of a 3-D ischemic heart model derived from MRI data to the simulation of the electrical activity of the heart

Author

Stalidis, G. ; Maglaveras, N. ; Dimitriadis, A. ; Pappas, C. ; Strintzis, M. ; Efstratiadis, SN

Author_Institution

Aristotelian Univ. of Thessaloniki, Greece

fYear

1996

Firstpage

329

Lastpage

332

Abstract

The propagation of the electrical activity of the heart is simulated over regions containing infarcted tissue. The method is applied to patients suffering from ischemia, in order to study the impact of the injury on the electrical function of the heart. The spatial distribution of the infarcted tissue and the shape of the endocardial and the epicardial surfaces are derived from MRI data using a semiautomatic method based on 3D Fourier parametric modeling. A 2D grid is then constructed which represents a selected part of the epicardial surface and contains information about the condition of the tissue. This grid is used as input to the simulation algorithm which estimates the ionic currents over time and the propagation of the electric impulse.

Keywords

bioelectric phenomena; biomedical NMR; cardiology; medical image processing; physiological models; 2D grid; 3-D ischemic heart model; 3D Fourier parametric modeling; MRI data; electric impulse propagation; endocardial surface; epicardial surface; heart electrical activity simulation; infarcted tissue; injury effects; ionic currents estimation; ischemia patients; semiautomatic method; simulation algorithm; tissue condition information; Deformable models; Heart; Injuries; Ischemic pain; Magnetic resonance imaging; Medical simulation; Parametric statistics; Rough surfaces; Surface fitting; Surface roughness;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 1996

Conference_Location

Indianapolis, IN, USA

ISSN

0276-6547

Print_ISBN

0-7803-3710-7

Type

conf

DOI

10.1109/CIC.1996.542540

Filename

542540