DocumentCode :
3307388
Title :
Suspicious polyphase patterns of normal looking ECGs provide fast early diagnoses of a coronary artery disease
Author :
Sabry-Rizk, M. ; El-Khafif, S. ; Carson, E. ; Zgallai, W. ; Grattan, K. ; Morgan, C. ; Hardiman, P.
Author_Institution :
Dept. of Electr. Eng., City Univ., London, UK
Volume :
2
fYear :
1999
fDate :
36434
Abstract :
In this paper higher-order statistics (HOS) based algorithms are employed to develop discriminant contour patterns in the multi-dimensional phase of the polyspectra (polyphase) of `normal´ looking ECGs in outpatients having weariness and general malaise or chest pain. Similar polyphase patterns have been found in the ECGs of acute myocardial infarct patients with or without diagnostic S-T segment and T-wave changes. The polyphase computation is done in milliseconds but a temporal window of 10 ECG cycles is necessary in each of the polyspectral averaging process of 10 seconds. A high resolution three-lead ECG is more than adequate for polyphase discrimination. So far, the results of an ongoing pilot study show that this is a potentially powerful and spot-on diagnostic technique. Particularly in those 50 percent pre-infarction syndrome cases which show perfectly normal 12-lead ECGs and will not be identified early enough to prevent them from developing acute myocardial infarction
Keywords :
blood vessels; cardiovascular system; diseases; electrocardiography; filtering theory; higher order statistics; medical signal processing; signal classification; spectral analysis; coronary artery disease; discriminant contour patterns; fast early diagnoses; high resolution three-lead ECG; higher-order statistics based algorithms; multi-dimensional phase; normal looking ECG; polyspectral averaging process; pre-infarction syndrome; suspicious polyphase patterns; temporal window; Ambient intelligence; Cardiology; Coronary arteriosclerosis; Electrocardiography; Frequency; Higher order statistics; Hospitals; Myocardium; Pain; Signal processing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
ISSN :
1094-687X
Print_ISBN :
0-7803-5674-8
Type :
conf
DOI :
10.1109/IEMBS.1999.804133
Filename :
804133
Link To Document :
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