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Detection of life-threatening cardiac arrhythmias using the wavelet transformation

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Abstract

Time-frequency wavelet theory is used for the detection of life threatening electrocardiography (ECG) arrhythmias. This is achieved through the use of the raised cosine wavelet transform (RCWT). The RCWT is found to be useful in differentiating between ventricular fibrillation, ventricular tachycardia and atrial fibrillation. Ventricular fibrillation is characterised by continuous bands in the range of 2–10 Hz; ventricular tachycardia is characterised by two distinct bands: the first band in the range of 2–5 Hz and the second in the range of 6–8 Hz; and atrial fibrillation is determined by a low frequency band in the range of 0–5 Hz. A classification algorithm is developed to classify ECG records on the basis of the computation of three parameters defined in the time-frequency plane of the wavelet transform. Furthermore, the advantage of localising and separating ECG signals from high as well as intermediate frequencies is demonstrated. The above capabilities of the wavelet technique are supported by results obtained from ECG signals obtained from normal and abnormal subjects.

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Authors and Affiliations

  1. Department of Electrical Engineering, Jordan University of Science & Technology, Irbid, Jordan

    L. Khadra

  2. Department of Electronic Engineering, Yarmouk University, Irbid, Jordan

    A. S. Al-Fahoum & H. Al-Nashash

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  1. L. Khadra
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  2. A. S. Al-Fahoum
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  3. H. Al-Nashash
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Correspondence to L. Khadra.

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Khadra, L., Al-Fahoum, A.S. & Al-Nashash, H. Detection of life-threatening cardiac arrhythmias using the wavelet transformation. Med. Biol. Eng. Comput. 35, 626–632 (1997). https://doi.org/10.1007/BF02510970

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  • DOI: https://doi.org/10.1007/BF02510970

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