Estimating fiber directions from local activation mapping: a model study

Author

Muzikant, Adam L. ; Weitzel, Erik K. ; Henriquez, Craig S.

Author_Institution

Dept. of Biomed. Eng., Duke Univ., Durham, NC, USA

Volume

1

fYear

1995

fDate

20-25 Sep 1995

Firstpage

81

Abstract

A computer model of activation with mapping was used to reconstruct local fiber directions in tissue with a nonuniform fiber field. Local activations from a point stimulus were recorded by surrounding electrodes in a small electrode plaque in the tissue domain. Through interpolation of the elliptically-shaped isochrones, fiber angles were determined for tissue under the electrode plaque. By estimation of fiber direction with activation mapping, local tissue properties can be evaluated and included in propagation models in an attempt to validate their results

Keywords

biocontrol; bioelectric potentials; biology computing; biomembrane transport; cardiology; physiological models; computer model; elliptically-shaped isochrones; epicardial surface; fiber angles; fiber directions; interpolation; local activation mapping; local fiber directions; local tissue properties; nonuniform fiber field; paced activation; point stimulus; propagation models; small electrode plaque; tissue; transmembrane potential; Biomedical computing; Biomedical electrodes; Biomedical engineering; Cardiac tissue; Conductivity; Interpolation; Myocardium; Optical fiber testing; Tensile stress; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-2475-7

Type

conf

DOI

10.1109/IEMBS.1995.575010

Filename

575010