Phonocardiogram signal analysis: a review.

  title={Phonocardiogram signal analysis: a review.},
  author={R. M. Rangayyan and Richard J. Lehner},
  journal={Critical reviews in biomedical engineering},
  volume={15 3},
Many disease of the heart cause changes in heart sounds and additional murmurs before other signs and symptoms appear. Hence, heart sound analysis by auscultation is the primary test conducted by physicians to assess the condition of the heart. Yet, heart sound analysis by auscultation as well as analysis of the phonocardiogram (PCG) signal have not gained widespread acceptance. This is due mainly to many controversies regarding the genesis of the sounds and the lack of quantitative techniques… CONTINUE READING
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