Back to Journals » Medical Devices: Evidence and Research » Volume 4

Heart detection and diagnosis based on ECG and EPCG relationships

Authors Phanphaisarn, Roeksabutr, Wardkein, Koseeyaporn, Yupapin P

Published 26 August 2011 Volume 2011:4 Pages 133—144


Review by Single anonymous peer review

Peer reviewer comments 2

W Phanphaisarn1, A Roeksabutr1, P Wardkein2, J Koseeyaporn2, PP Yupapin3
1Department of Telecommunication Engineering, Faculty of Engineering, Mahanakorn University, Nongjok, Bangkok, Thailand; 2Department of Telecommunication Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand; 3Nanoscale Science and Engineering Research Alliance (N'SERA), Advanced Research Center for Photonics, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand

Abstract: A new design of a system for preliminary detection of defective hearts is proposed which is composed of two subsystems, in which one is based on the relationship between the electrocardiogram (ECG) and phonocardiogram (PCG) signals. The relationship between both signals is determined as an impulse response (h(n)) of a system, where the decision is made based on the linear predictive coding coefficients of a heart's impulse response. The other subsystem uses a phase space approach, in which the mean squared error between the distance vectors of the phase space of the normal heart and abnormal heart is judged by the likelihood ratio test (Λ) value, on which the decision is made. The advantage of the proposed system is that a heart's diagnosis system based on the ECG and EPCG signals can lead to high performance heart diagnostics.

Keywords: signal transduction therapy, heart defect detection, electrocardiogram, envelop of phonocardiogram, phase space

Creative Commons License © 2011 The Author(s). This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.