title: Analysis of the second heart sound using continuous wavelet transform.
abstract: This paper is concerned with a synthesis study of Continuous Wavelet Transform (CWT) in analysing the second heart sound of the phonocardiogram (PCG). The second heart sound S2 consists of two major components (A2 and P2) with a time delay between them which is very important for a diagnosis. It is shown that CWT provides enough features of these components of time, frequency and time delay to aid diagnosis.
authors.affiliation: Biomedical Engineering Laboratory (GBM), Department of Electronics, University of Aboubekr Belkaid, Tlemcen, Algeria.
authors.forename: S M
authors.initials: SM
authors.lastname: Debbal
authors.forename: F
authors.initials: F
authors.lastname: Bereksi-Reguig
mesh_terms: D001017:Aortic Coarctation / Q000175:diagnosis / Q000503:physiopathology; D001021:Aortic Valve / Q000502:physiology*; D006347:Heart Sounds / Q000502:physiology*; D006801:Humans; D008946:Mitral Valve Stenosis / Q000175:diagnosis / Q000503:physiopathology; D010701:Phonocardiography / Q000379:methods; D011664:Pulmonary Valve / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted; D013997:Time Factors