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BioelectromagnetismPrinciples and Applications of Bioelectric and Biomagnetic Fields$
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Jaakko Malmivuo and Robert Plonsey

Print publication date: 1995

Print ISBN-13: 9780195058239

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780195058239.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 05 March 2021

12-Lead ECG System

12-Lead ECG System

Chapter:
(p.277) Chapter 15 12-Lead ECG System
Source:
Bioelectromagnetism
Author(s):

Jaakko Malmivuo

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195058239.003.0015

The lead vectors associated with Einthoven's lead system are conventionally found based on the assumption that the heart is located in an infinite, homogeneous volume conductor (or at the center of a homogeneous sphere representing the torso). One can show that if the position of the right arm, left arm, and left leg are at the vertices of an equilateral triangle, having the heart located at its center, then the lead vectors also form an equilateral triangle. A simple model results from assuming that the cardiac sources are represented by a dipole located at the center of a sphere representing the torso, hence at the center of the equilateral triangle.

Keywords:   ECG system, volume conductor, lead vectors, dipole, cardiac sources, depolarization, ECG signal

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