Detection of hypovolemia using short-time Fourier transform analysis of S1 heart sounds

Detection of hypovolemia using short-time Fourier transform analysis of S1 heart sounds

We present preliminary findings from applying the short-time spectral analysis to intra-operatively recorded heart sound signals. The goal is to detect hypovolemia as revealed by changes in the S1 and S4 heart sound. We present a statistic based on the temporal distribution of energy bursts as a can...

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Bibliographische Detailangaben
Hauptverfasser: Wensheng Fan, Brooks, D.H., Mandel, J., Calalang, I., Philip, J.H.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Acoustic signal detection
Anesthesia
Discrete Fourier transforms
Fourier transforms
Frequency estimation
Heart
Humans
Signal analysis
Spectral analysis
Statistical distributions
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Zusammenfassung:We present preliminary findings from applying the short-time spectral analysis to intra-operatively recorded heart sound signals. The goal is to detect hypovolemia as revealed by changes in the S1 and S4 heart sound. We present a statistic based on the temporal distribution of energy bursts as a candidate classification feature.
DOI:10.1109/NEBC.1995.513755