Title :
Cardiac arrhythmias predictive detection methods with wavelet-SVD analysis and support vector machines
Author :
Namarvar, Hassan H. ; Shahidi, A.Vahid
Author_Institution :
Dept. of Biomed. Eng., Southern California Univ., Los Angeles, CA, USA
Abstract :
We expand the idea to develop new bio-signal processing tools that could predict possibility of future risk of abnormalities in ECG signals. The goal is to detect an inherent defect hidden in an ECG signal using wavelet analysis and support vector machines. We apply singular value decomposition analysis of spectral energy distribution in time-frequency plane to extract features, which is essentially independent of the actual duration of each event. We then classify the life threatening cardiac arrhythmias using support vector machines. We also investigate robustness of the developed system under presence of continuous Gaussian white noise. We obtained 92% sensitivity and 75% specificity for clean data and 81% sensitivity and 62% specificity for noisy data on our database. The proposed method could assist the health care professionals by earlier prediction of a disease and hence could facilitate in patient management, i.e., to provide a proper treatment for prevention or reduction of the future risk.
Keywords :
diseases; electrocardiography; feature extraction; medical signal processing; signal classification; singular value decomposition; support vector machines; time-frequency analysis; wavelet transforms; white noise; ECG signals; bio-signal processing; cardiac arrhythmias predictive detection method; continuous Gaussian white noise; feature extraction; patient management; signal classification; singular value decomposition; spectral energy distribution; support vector machines; time-frequency analysis; wavelet analysis; Data mining; Electrocardiography; Signal analysis; Signal processing; Singular value decomposition; Spectral analysis; Support vector machine classification; Support vector machines; Time frequency analysis; Wavelet analysis; Cardiac Arrhythmias; SVM; and Wavelet-SVD;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403168