Time-frequency and time-scale techniques for the classification of native and bioprosthetic heart valve sounds.
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- Record sourced from PubMed, PMID 9444847.
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Abstract
The determination of diagnostic features in recorded heart sounds was investigated with Carpentier-Edwards (CE) bioprosthetic valves. Morphological features, extracted using the Choi-Williams distribution, achieved between 96 and 61% correct classification. The time-scale wavelet-transform feature set achieved 100% correct classification with native valve populations, and 87% with the CE replacements.
Medical subject headings
- Bioprosthesis
- Heart Sounds
- Heart Valve Prosthesis
- Signal Processing, Computer-Assisted