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http://dx.doi.org/10.9717/kmms.2012.15.11.1330

Heart Valve Stenosis Region Detection Algorithm on Heart Sounds  

Lee, G.H. (경북대학교 대학원 의용생체공학과)
Lee, Y.J. (경북대학교 대학원 의용생체공학과)
Kim, M.N. (경북대학교 의학전문대학원 의공학교실)
Publication Information
Journal of Korea Multimedia Society / v.15, no.11, 2012 , pp. 1330-1340 More about this Journal
Abstract
In this paper, a new algorithm is proposed for the heart valves stenosis region detection using heart sounds. Many researches for detecting primary components or removing heart murmurs have been studied, but their performances are degraded at abnormal heart sounds such as aortic stenosis and mitral stenosis because of large heart murmurs. In this paper, heart murmur detection method is proposed based on noise intensity function. The proposed noise intensity function detect the primary components S1, S2, then set session up using S1, S2. And then noise intensity function was computed using autocorrelation value of each session. The proposed noise intensity function estimated noise intensity of each sessions and detected heart murmurs. According to simulation results, the proposed algorithm has better performance than former study for detecting heart valve stenosis region.
Keywords
Heart sounds; Heart valve stenosis; Autocorrelation function; Noise intensity function;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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