Imaging epicardial current sources from magnetic data

Author

Ferguson, A.S. ; Stroink, G.

Author_Institution

Dept. of Phys., Dalhousie Univ., Halifax, NS, Canada

Volume

4

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

1441

Abstract

A method is presented for determining the strength and orientation of current sources lying on the epicardium from the magnetocardiographic data. The effect of data noise and original source location on the resultant source localization is investigated. A variety of techniques are used to reduce the sensitivity of the solution to noise particularly for deeper sources. A projection scheme is discussed which produces a 2-dimensional display of the 3-dimensional epicardial solution

Keywords

bioelectric phenomena; biomedical imaging; magnetocardiography; noise; 2-dimensional display; 3-dimensional epicardial solution; current sources orientation; current sources strength; epicardial current sources imaging; magnetic data; medical diagnostic imaging; noise sensitivity; projection scheme; source localization; Conductors; Equations; Magnetic confinement; Magnetic field measurement; Magnetic fields; Magnetic sensors; Noise reduction; Physics; Signal to noise ratio; Torso;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.647495

Filename

647495