Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis

Research and study of the electrocardiogram evolves with the advancement of digital signal processing and artificial intelligence. Unfortunately, readily available electrocardiogram machines in the market do not provide automated measurement of the QT dispersion. Therefore, a twelve-lead electrocard...

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Main Author:	Jamaludin, Mohd. Najeb
Format:	Thesis
Language:	English
Published:	2007
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/6400/1/MohdNajebJamaludinMFKE2007.pdf
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spelling	my-utm-ep.64002018-08-26T04:45:27Z Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis 2007-06 Jamaludin, Mohd. Najeb TK Electrical engineering. Electronics Nuclear engineering Research and study of the electrocardiogram evolves with the advancement of digital signal processing and artificial intelligence. Unfortunately, readily available electrocardiogram machines in the market do not provide automated measurement of the QT dispersion. Therefore, a twelve-lead electrocardiogram system is developed in order to assist the cardiologists in carrying out their research on the cardiac diseases. The development of the system consists of several phases. The first phase includes the construction of a real-time twelve channels data acquisition unit with the universal serial bus (USB) interface. The following phase includes the study and development of the electrocardiogram signal conditioning circuits. The third phase is the study of the designed anti-aliasing filters and its effect to the electrocardiogram distortion. The Butterworth and the Bessel filters, each with orders of two four and eight are compared and the 8th order Bessel low pass filter appears to be the best candidate. The subsequent phase is the implementation of the time-domain subtraction technique to remove the power line noise in the electrocardiogram signal with minimal distortion. The filter is compared to a notch Twin-T filter, and results showed that not only the time-domain subtraction technique suppresses noise, it also preserves the original signal with minimal distortion. The automated QT interval measurement algorithm is validated upon an annotated standard database, the Physikalisch-Technische Bundesanstalt (PTB) Diagnostic Electrocardiogram database which is being the focused for the International QT Interval Challenge 2006. Result shows that 28.53% of the database is correctly identified for the QRS onset and T offset locations due to the dissimilar morphologies of the electrocardiogram signal. 2007-06 Thesis http://eprints.utm.my/id/eprint/6400/ http://eprints.utm.my/id/eprint/6400/1/MohdNajebJamaludinMFKE2007.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:62239 masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Jamaludin, Mohd. Najeb Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis
description	Research and study of the electrocardiogram evolves with the advancement of digital signal processing and artificial intelligence. Unfortunately, readily available electrocardiogram machines in the market do not provide automated measurement of the QT dispersion. Therefore, a twelve-lead electrocardiogram system is developed in order to assist the cardiologists in carrying out their research on the cardiac diseases. The development of the system consists of several phases. The first phase includes the construction of a real-time twelve channels data acquisition unit with the universal serial bus (USB) interface. The following phase includes the study and development of the electrocardiogram signal conditioning circuits. The third phase is the study of the designed anti-aliasing filters and its effect to the electrocardiogram distortion. The Butterworth and the Bessel filters, each with orders of two four and eight are compared and the 8th order Bessel low pass filter appears to be the best candidate. The subsequent phase is the implementation of the time-domain subtraction technique to remove the power line noise in the electrocardiogram signal with minimal distortion. The filter is compared to a notch Twin-T filter, and results showed that not only the time-domain subtraction technique suppresses noise, it also preserves the original signal with minimal distortion. The automated QT interval measurement algorithm is validated upon an annotated standard database, the Physikalisch-Technische Bundesanstalt (PTB) Diagnostic Electrocardiogram database which is being the focused for the International QT Interval Challenge 2006. Result shows that 28.53% of the database is correctly identified for the QRS onset and T offset locations due to the dissimilar morphologies of the electrocardiogram signal.
format	Thesis
qualification_level	Master's degree
author	Jamaludin, Mohd. Najeb
author_facet	Jamaludin, Mohd. Najeb
author_sort	Jamaludin, Mohd. Najeb
title	Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis
title_short	Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis
title_full	Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis
title_fullStr	Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis
title_full_unstemmed	Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis
title_sort	real-time implementation of twelve-lead automated electrocardiogram system measurement for qt dispersion analysis
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2007
url	http://eprints.utm.my/id/eprint/6400/1/MohdNajebJamaludinMFKE2007.pdf
_version_	1747814650933673984

Real-time implementation of twelve-lead automated electrocardiogram system measurement for QT dispersion analysis

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