Results 201 to 210 of about 5,458 (233)
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The Hemienvelope Phonocardiogram.
Annals of Internal Medicine, 1963Excerpt When ultra high-frequency, high-speed phonocardiography was studied, it became clear that the traditional methods employed to display the heart sounds were inadequate for precise observatio...
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Computer analysis techniques for phonocardiogram diagnosis
Computers and Biomedical Research, 1976Abstract An analysis procedure for small digital computers was developed to study heart sounds and heart murmurs in the frequency, time, and envelope domains. Signal processing techniques which can aid positive diagnosis are described and plots are presented to demonstrate their effectiveness.
A A, Sarkady, R R, Clark, R, Williams
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The exercise phonocardiogram in mitral stenosis
American Heart Journal, 1966Abstract Eighteen of 20 patients with moderate and severe mitral stenosis had positive exercise phonocardiographic tests. None of the 10 patients with mild stenosis had a positive test. Pour of 7 patients who had positive tests preoperatively and were retested after mitral valvotomy had negative tests.
D D, Decker, M J, Gerbrandt, M I, Dunn
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Digital processing of phonocardiograms: First results
International Journal of Bio-Medical Computing, 1974Abstract Phonocardiography is the recording of the heart sounds. In this paper, the authors propose a method for phonocardiograms automatic parameterisation. The results of an automatic typological study made on parameterised records are presented.
W, Litwin, F, Begon
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Optimal wavelet denoising for phonocardiograms
Microelectronics Journal, 2001Phonocardiograms (PCGs), recordings of heart sounds, have many advantages over traditional auscultation in that they may be replayed and analysed for spectral and frequency information. PCG is not a widely used diagnostic tool as it could be. One of the major problems with PCG is noise corruption.
Messer, S., Agzarian, J., Abbott, D.
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THE PHONOCARDIOGRAM IN CONGENITAL HEART DISEASE
Australasian Annals of Medicine, 1959SummaryPhonocardiograms recorded in a series of 440 cases of congenital heart disease have been analysed, and the patterns found in the chief conditions described. These patterns are typical in the great majority of cases, and a well‐taken phonocardiogram, while a relatively simple test, will greatly assist in establishing the diagnosis.
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Noise detection in smartphone phonocardiogram
2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2017This paper presents a demo proposal of a standalone smartphone application that can automatically analyse the signal quality of PCG, as it is recorded on a low-cost smartphonebased digital stethoscope. Features, related to the inherent pattern of the autocorrelated signal envelope, have been used for classifying and discarding the noisy portions from a
Deepan Das +7 more
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AUTOMATIC ANALYSIS OF PHONOCARDIOGRAMS*
Annals of the New York Academy of Sciences, 1964A, TARANTA +4 more
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The Phonocardiogram in Systemic Hypertension
Chest, 1970A A, Luisada, B, Argano
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