Cart (Loading....) | Create Account
Close category search window

Heart-surface potentials estimated from 12-lead electrocardiograms

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Horáček, B.M. ; Dalhousie Univ., Halifax, NS, Canada ; Warren, J.W. ; Wang, J.Y.

We investigated whether the ischemic region due to coronary-artery occlusion can be visualized on the heart-surface display by using as input data just ST measurements from the 12-lead ECG. A boundary-element torso model was used to estimate heart-surface potentials from body-surface potential maps (BSPMs) obtained from 12-lead ECG via transformation developed from a design set (n = 892) of 120-lead ECGs by a least-square solution to the linear regression problem. The test set consisted of 120-lead ECGs acquired for 45 patients during ischemia induced by balloon-inflation angioplasty; subgroups of equal size consisted of patients whose LAD, LCx, and RCA were occluded, respectively. BSPMs at J point of each patient were predicted from the 12-lead ECG and similarity of original and predicted maps was assessed by a similarity coefficient SC (0-100%). By inverse solution, heart-surface potentials were then estimated from original and predicted BSPMs and visualized on a bull's-eye display. Reconstitution of known BSPMs from the 12-lead ECG achieved an overall SC 92.46 ± 6.95% (mean ± SD); for subgroups, SC was: 89.79 ± 9.95% for LAD, 93.89 ± 2.86% for LCx, and 93.70 ± 5.77% for RCA group. Estimated heart-surface potential distributions featured an area of positive potentials corresponding, in general, to the underperfused territory caused by the occlusion. Encouraging results can be attributed to the strongly dipolar character of BSPMs caused by injury current. This approach shows promise for ischemia detection and quantitation.

Published in:

Computing in Cardiology, 2010

Date of Conference:

26-29 Sept. 2010

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.