Results 191 to 200 of about 5,744 (245)

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.
Marvin Dunn, Donald D. Decker, Marjorie J. Gerbrandt   +2 more
openaire   +3 more sources

Phonocardiogram (PCG) Signals Based Classification of Heart Abnormalities

International Joint Conference on the Analysis of Images, Social Networks and Texts, 2022
Cardiovascular disease (CVD) is a serious illness that affects over the world. Early detection and prevention of CVD is thought to help reduce CVD mortality rates. There are many advanced technologies available for detecting CVD related symptoms, however
V. Vijean, M. Vikneswaran, R. Palaniappan, Thong Zhi, Lee, Kantha Rao, Khaled Mohamed Helmy Abdelaziz, C. Y. Fook, Abdul Majid   +8 more
semanticscholar   +1 more source

Deep Learning for Heartbeat Phonocardiogram Signals Explainable Classification

International Conferences on Biological Information and Biomedical Engineering, 2022
Cardiovascular diseases include a very long series of diseases that afflict many people in the world. Many of them can be diagnosed by listening to the heartbeat, however in the face of the large number of patients performing checks, great delays can ...
M. Cesarelli, Marcello Di Giammarco, Giacomo Iadarola, Fabio Martinelli, F. Mercaldo, A. Santone   +5 more
semanticscholar   +1 more source

Automatic heart sound classification from segmented/unsegmented phonocardiogram signals using time and frequency features

Physiological Measurement, 2020
Objective: Heart abnormality detection using heart sound signals (phonocardiogram (PCG)) has been an active research area for the last few decades.
Faiq Ahmad Khan, A. Abid, Muhammad Salman Khan   +2 more
semanticscholar   +1 more source

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.
R. S. Anand, Jawar Singh
openaire   +3 more sources

Ensemble methods with outliers for phonocardiogram classification [PDF]

Physiological Measurement, 2017
Heart sound classification and analysis play an important role in the early diagnosis and prevention of cardiovascular disease. To this end, this paper introduces a novel method for automatic classification of normal and abnormal heart sound recordings.Signals are first preprocessed to extract a total of 131 features in the time, frequency, wavelet and
Masun Nabhan Homsi, Philip A. Warrick
openaire   +2 more sources

Heart Murmur Detection from Phonocardiogram Recordings using Deep Learning Techniques

2022 International Conference on Futuristic Technologies (INCOFT), 2022
The purpose of this research is to Figure out where the murmur’s boundaries are in heartbeat sound. Murmurs in the heart can help diagnose a wide range of heart problems, including natural or artificial valve dysfunction and heart failure.
Nikhil Shrikrishna Bathe, Vaishali Ingale   +1 more
semanticscholar   +1 more source

Methods for classification of phonocardiogram

TENCON 2003. Conference on Convergent Technologies for Asia-Pacific Region, 2004
The emergence of cardiac surgery and with it an imperative need for precise anatomical diagnosis have revived the technical advancement necessary for the amplification and recording of cardiovascular sounds. The study of phonocardiography has developed out of this confidence.
J. Muruganantham, R. Amarnath, K.V. Jawahar, C. Kalyanasundaram   +3 more
openaire   +2 more sources

The pericardial friction rub in the phonocardiogram

The American Journal of Cardiology, 1959
Abstract The sound phenomena caused by pericarditis are discussed in regard to their acoustical qualities and their peculiarities, as demonstrated in the phonocardiogram. 1. 1. Pericardial murmurs are predominantly of high frequency, but may also contain vibrations of low frequency. 2. 2. Their amplitude varies considerably. 3. 3.
A. Heller, W. Groth, K. Holldack
openaire   +3 more sources

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...
openaire   +2 more sources