Surgery – Diagnostic testing – Cardiovascular
Reexamination Certificate
2005-10-11
2005-10-11
Schaetzle, Kennedy (Department: 3762)
Surgery
Diagnostic testing
Cardiovascular
C600S586000, C128S925000
Reexamination Certificate
active
06953436
ABSTRACT:
A method for extracting and evaluating features from cardiac acoustic signals includes the steps of obtaining a cardiac acoustic signal, extracting physiologically significant features from the cardiac acoustic signal using a neural network, analyzing the cardiac acoustic signal with a wavelist decomposition to extract time-frequency information, and identifying basic heart sounds using neutral networks applied to the extracted time-frequency information. A method for determining a status of heart murmurs includes the steps of obtaining a cardiac acoustic signal, detecting a murmur, if any, from the cardiac acoustic signal, and determining whether the murmur is one of functional and pathological based upon expert rules.
REFERENCES:
patent: 5638823 (1997-06-01), Akay et al.
patent: 5730142 (1998-03-01), Sun et al.
patent: 6383135 (2002-05-01), Chikovani et al.
patent: 6572560 (2003-06-01), Watrous et al.
patent: WO 92/03094 (1992-03-01), None
Barschdorff et al., “Automatic Phonocardiogram Signal Analysis in Infants Based on Wavelet Transforms and Artificial Neural Networks”, Computers in Cardiology, 1995, Vienna Austria, Sep. 10-13, 1995, pp. 753-756.
Huiying et al., “A Heart Sound Feature Extraction Algorithm Based on Wavelet Decomposition and Reconstruction”, Proc. Of the 20thAnn. Int'l. Conf. Of the IEEE Engineering in Medicine and Biology Society, Hong Kong China, Oct. 29-Nov. 1, 1998, vol. 20, No. 3, 1998, pp. 1539-1542.
Wu et al., “Computer-aided Analysis and Classification of Heart Sounds Based on Neural Networks and Time Analysis”, 1995 Intl. Conf. On Acoustics, Speech and Signal Processing, Conf. Proceedings, vol. 5, 1995, pp 3455-3458.
Edwards et al., “Neural Network and Conventional Classifiers to Distinguish Between First and Second Heart Sounds”, IEEE Colloquium on Artificial Intelligence Methods for Biomedical Data Processing, London, UK, Apr. 26, 1996, pp. 1-3.
Reichek Nathaniel
Watrous Raymond
Mullen Kristen
RatnerPrestia
Schaetzle Kennedy
Zargis Medical Corp.
LandOfFree
Multi-modal cardiac diagnostic decision support system and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-modal cardiac diagnostic decision support system and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-modal cardiac diagnostic decision support system and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3471177