Spectral analysis of heart sounds associated with coronary occlusions

Dominique Gauthier, Yasemin M. Akay, Robert G. Paden, William Pavliecek, F. David Fortuin, John K. Sweeney, Richard W. Lee, Metin Akay

Research output: Chapter in Book/Report/Conference proceedingConference contribution

23 Citations (Scopus)

Abstract

Numerous studies based on the spectral analysis of diastolic sounds showed an increase in the high frequency portion of the spectrum for patients with coronary artery disease (CAD) compared with normal patients. The overall goal of this study is to detect the presence of coronary artery disease in patients using a noninvasive and inexpensive approach. A commercially available electronic stethoscope was used to record the diastolic heart sounds from patients diagnosed with or without CAD based on their coronary angiography examination. The Fast Fourier Transform, a widely used signal processing method, was then implemented on the diastolic segments. The power ratios of the energy above 130 Hz to the energy below 130 Hz were calculated for normal and abnormal patients and compared. Results furthermore confirmed that patients with CAD have more energy in the higher portion of their spectrum, resulting in higher power ratios than for normal patients (p < 0.05). This approach led to a sensitivity of 71%, a specificity of 83% and an overall accuracy of 73.3% using an optimal threshold ratio of 1.5. These results suggest that the proposed system could be used in clinics as part of standard physical examinations.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE/EMBS Region 8 International Conference on Information Technology Applications in Biomedicine, ITAB
Pages49-52
Number of pages4
DOIs
StatePublished - 2008
Event6th International Special Topic Conference on ITAB, 2007 - Tokyo, Japan
Duration: Nov 8 2007Nov 11 2007

Other

Other6th International Special Topic Conference on ITAB, 2007
CountryJapan
CityTokyo
Period11/8/0711/11/07

Fingerprint

Spectrum analysis
Acoustic waves
Angiography
Fast Fourier transforms
Signal processing

Keywords

  • Coronary artery disease
  • Fast Fourier Transform
  • Occlusions
  • Power ratio
  • Spectral energy

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Science(all)

Cite this

Gauthier, D., Akay, Y. M., Paden, R. G., Pavliecek, W., Fortuin, F. D., Sweeney, J. K., ... Akay, M. (2008). Spectral analysis of heart sounds associated with coronary occlusions. In Proceedings of the IEEE/EMBS Region 8 International Conference on Information Technology Applications in Biomedicine, ITAB (pp. 49-52). [4407421] https://doi.org/10.1109/ITAB.2007.4407421

Spectral analysis of heart sounds associated with coronary occlusions. / Gauthier, Dominique; Akay, Yasemin M.; Paden, Robert G.; Pavliecek, William; Fortuin, F. David; Sweeney, John K.; Lee, Richard W.; Akay, Metin.

Proceedings of the IEEE/EMBS Region 8 International Conference on Information Technology Applications in Biomedicine, ITAB. 2008. p. 49-52 4407421.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gauthier, D, Akay, YM, Paden, RG, Pavliecek, W, Fortuin, FD, Sweeney, JK, Lee, RW & Akay, M 2008, Spectral analysis of heart sounds associated with coronary occlusions. in Proceedings of the IEEE/EMBS Region 8 International Conference on Information Technology Applications in Biomedicine, ITAB., 4407421, pp. 49-52, 6th International Special Topic Conference on ITAB, 2007, Tokyo, Japan, 11/8/07. https://doi.org/10.1109/ITAB.2007.4407421
Gauthier D, Akay YM, Paden RG, Pavliecek W, Fortuin FD, Sweeney JK et al. Spectral analysis of heart sounds associated with coronary occlusions. In Proceedings of the IEEE/EMBS Region 8 International Conference on Information Technology Applications in Biomedicine, ITAB. 2008. p. 49-52. 4407421 https://doi.org/10.1109/ITAB.2007.4407421
Gauthier, Dominique ; Akay, Yasemin M. ; Paden, Robert G. ; Pavliecek, William ; Fortuin, F. David ; Sweeney, John K. ; Lee, Richard W. ; Akay, Metin. / Spectral analysis of heart sounds associated with coronary occlusions. Proceedings of the IEEE/EMBS Region 8 International Conference on Information Technology Applications in Biomedicine, ITAB. 2008. pp. 49-52
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