Results 201 to 210 of about 5,548 (255)

Automatic segmentation for neonatal phonocardiogram

2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2021
This work addresses the automatic segmentation of neonatal phonocardiogram (PCG) to be used in the artificial intelligence-assisted diagnosis of abnormal heart sounds. The proposed novel algorithm has a single free parameter - the maximum heart rate. The algorithm is compared with the baseline algorithm, which was developed for adult PCG segmentation ...
Sergi, Gomez-Quintana, Ihor, Shelevytsky, Victoriya, Shelevytska, Emanuel, Popovici, Andriy, Temko   +4 more
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The phonocardiogram exercise test

IEEE Engineering in Medicine and Biology Magazine, 1999
Cardiovascular disease is the leading killer and the major cause of disability in adults. Detection and analysis of heart sounds is an important (and economical) method that can be used to determine the state of the heart and great vessels. In this article we present a newly developed technique for detecting cardiac reserve in both healthy and diseased
Y, Xiao, S, Xiao, Z, Cao, S, Zhou, J, Pei   +4 more
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Computer aided analysis of phonocardiogram

Journal of Medical Engineering & Technology, 2007
In the present paper analysis of phonocardiogram (PCG) records are presented. The analysis has been carried out in both time and frequency domains with the aim of detecting certain correlations between the time and frequency domain representations of PCG. The analysis is limited to first and second heart sounds (S1 and S2) only.
J, Singh, R S, Anand
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Fetal Phonocardiogram Decomposition Framework

SoutheastCon 2018, 2018
In this paper, an efficient procedure to identify vital bio-signals from the Fetal Phonocardiogram (FPCG) signal is presented. FPCG signal is rich in physiological bio-signals. However, extracting these bio-signals with fidelity is a challenging task since they overlap in time and frequency and as well as corrupted by noise induced from the maternal ...
Venkata Akshay B. K. Vadali, Shraddha Pandey, Prashanth Chetlur Adithya, Ravi Sankar   +3 more
openaire   +1 more source

The Hemienvelope Phonocardiogram.

Annals of Internal Medicine, 1963
Excerpt 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, 1976
Abstract 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, 1966
Abstract 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, 1974
Abstract 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, 2001
Phonocardiograms (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, 1959
SummaryPhonocardiograms 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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