Body surface Laplacian mapping of ventricular depolarization from potential recordings in humans

Author

Hara, M.O. ; Yu, X. ; Mehdi, N. ; Schwartz, C. ; Wu, D. ; Avitall, B. ; He, B.

Author_Institution

Bioeng. Program, Illinois Univ., Chicago, IL, USA

Volume

1

fYear

1995

fDate

20-25 Sep 1995

Firstpage

225

Abstract

We investigated the feasibility of obtaining body surface Laplacian maps (BSLMs) from unipolar electrocardiographic recordings in humans. The overall pattern of the BSLMs during ventricular depolarization is reproducible for subjects examined and for multiple sets of maps within a single subject. Right and left ventricular activities are well resolved in the BSLMs over the anterior chest as compared with body surface potential maps (BSPMs). Our experimental results demonstrate the feasibility of performing body surface Laplacian electrocardiographic mapping from potential recordings. The effects of measurement noise and electrode position uncertainty on the Laplacian derivation were also evaluated by computer simulation

Keywords

Laplace equations; digital simulation; electrocardiography; medical signal processing; BSLM; Laplacian derivation; anterior chest; body surface Laplacian mapping; body surface potential maps; cardiac disease; computer simulation; electrode position uncertainty; humans; left ventricular activities; measurement noise; multiple sets; potential recordings; right ventricular activities; unipolar electrocardiographic recordings; ventricular depolarization; Bioelectric phenomena; Computer simulation; Electric potential; Electrodes; Gaussian noise; Humans; Laplace equations; Noise measurement; Position measurement; Signal processing;

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.1995.575082

Filename

575082