Abstract
Existence of the third heart sound is an indication of heart failure. In this paper, a novel method is proposed to detect the presence of the third heart sound. A timefrequency analysis method, Hilbert-Huang transform, was used to decompose the signal adaptively and to acquire the instantaneous frequency. Further extraction of the maximal instantaneous frequency and its magnitude is performed to a heart sound signal to distinguish the third heart sound which is usually with lower frequency as well as lower amplitude. A frequency-magnitude distribution was plotted, and the results showed the difference between a normal heart sound and a heart sound with the third heart sound.
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© 2009 Springer-Verlag Berlin Heidelberg
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Tseng, Y.L., Lin, K.S., Ko, P.Y., Jaw, F.S. (2009). Detection of the Third Heart Sound Using Hilbert-Huang Transform. In: Dössel, O., Schlegel, W.C. (eds) World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany. IFMBE Proceedings, vol 25/4. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03882-2_481
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DOI: https://doi.org/10.1007/978-3-642-03882-2_481
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-03881-5
Online ISBN: 978-3-642-03882-2
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