Results 11 to 20 of about 7,978 (286)

Augmented detection of septal defects using advanced optical coherence tomography network-processed phonocardiogram [PDF]

Frontiers in Cardiovascular Medicine, 2022
BackgroundCardiac auscultation is a traditional method that is most frequently used for identifying congenital heart disease (CHD). Failure to diagnose CHD may occur in patients with faint murmurs or obesity. We aimed to develop an intelligent diagnostic
Po-Kai Huang, Ming-Chun Yang, Ming-Chun Yang, Zi-Xuan Wang, Yu-Jung Huang, Wei-Chen Lin, Chung-Long Pan, Mei-Hui Guo   +7 more
doaj   +3 more sources

Time-frequency scaling transformation of the phonocardiogram based of the matching pursuit method.

, 1998
International audienceA time-frequency scaling transformation based on the matching pursuit (MP) method is developed for the phonocardiogram (PCG). The MP method decomposes a signal into a series of time-frequency atoms by using an iterative process. The
A.G. Clark, A.J. Jeffreys, B. Padhukasahasram, C. Carlson, D. Gusfield, D. Gusfield, D. Gusfield, G. Drouin, J. Hein, J. Hein, J. Hein, J.C. Stephens, J.D. Wall, L. Frisse, M. Lajoie, N. El-Mabrouk, P. Fearnhead, R. Hudson, R. Hudson, S. Sawyer, S.R. Myers, T. Wiehe, The International HapMap Consortium, V. Bafna, V. Bafna, Y.S. Song   +25 more
core   +3 more sources

Phonocardiogram in adult patients with tetralogy of Fallot [PDF]

Journal of Cardiology, 2015
Right ventricular outflow tract (RVOT) stenosis and pulmonary regurgitation (PR) are important residua and sequelae in adult tetralogy of Fallot (TOF) patients. Auscultation of the heart sound is a useful tool to detect and evaluate these lesions, but there was no previous report regarding heart sound in adult TOF.We enrolled consecutive TOF ...
Takeaki Shirai, Yumi Shiina, Atsushi Mizuno, Koichiro Niwa   +3 more
openaire   +4 more sources

Beyond Heart Murmur Detection: Automatic Murmur Grading From Phonocardiogram [PDF]

IEEE journal of biomedical and health informatics, 2022
Objective: Murmurs are abnormal heart sounds, identified by experts through cardiac auscultation. The murmur grade, a quantitative measure of the murmur intensity, is strongly correlated with the patient's clinical condition.
A. Elola, E. Aramendi, J. Oliveira, F. Renna, M. Coimbra, M. Reyna, R. Sameni, G. Clifford, Ali Bahrami Rad   +8 more
semanticscholar   +3 more sources

Beat-by-Beat Estimation of Hemodynamic Parameters in Left Ventricle Based on Phonocardiogram and Photoplethysmography Signals Using a Deep Learning Model: Preliminary Study [PDF]

Bioengineering
Beat-by-beat monitoring of hemodynamic parameters in the left ventricle contributes to the early diagnosis and treatment of heart failure, valvular heart disease, and other cardiovascular diseases.
Jiachen Mi, Tengfei Feng, Hongkai Wang, Zuowei Pei, Hong Tang   +4 more
doaj   +2 more sources

Evaluation of the Audicor Acoustic Cardiography Device as a Diagnostic Tool in Horses with Mitral or Aortic Valve Insufficiency [PDF]

Animals
Mitral and aortic valve insufficiencies have been commonly reported in horses. The objective of this study was to establish the use of acoustic cardiography (Audicor®) in horses with aortic (AI) or mitral valve insufficiency (MI).
Isabelle L. Piotrowski, Hannah K. Junge, Colin C. Schwarzwald   +2 more
doaj   +2 more sources

Wearable Cardiorespiratory Monitoring Employing a Multimodal Digital Patch Stethoscope: Estimation of ECG, PEP, LVET and Respiration Using a 55 mm Single-Lead ECG and Phonocardiogram

Sensors, 2020
Cardiovascular diseases are the main cause of death worldwide, with sleep disordered breathing being a further aggravating factor. Respiratory illnesses are the third leading cause of death amongst the noncommunicable diseases.
Michael Klum, Mike Urban, Timo Tigges
exaly   +2 more sources

An open-access simultaneous electrocardiogram and phonocardiogram database [PDF]

Physiological Measurement
Objective. The EPHNOGRAM project aimed to develop a low-cost, low-power device for simultaneous electrocardiogram (ECG) and phonocardiogram (PCG) recording, with additional channels for environmental audio to enhance PCG through active noise cancellation.
Arsalan Kazemnejad, Sajjad Karimi, Peiman Gordany, Gari D. Clifford, Reza Sameni   +4 more
semanticscholar   +2 more sources

Enhanced heart sound classification using Mel frequency cepstral coefficients and comparative analysis of single vs. ensemble classifier strategies. [PDF]

PLoS ONE
This paper seeks to enhance the performance of Mel Frequency Cepstral Coefficients (MFCCs) for detecting abnormal heart sounds. Heart sounds are first pre-processed to remove noise and then segmented into S1, systole, S2, and diastole intervals, with ...
Mehdi Hosseinzadeh, Amir Haider, Mazhar Hussain Malik, Mohammad Adeli, Olfa Mzoughi, Entesar Gemeay, Mokhtar Mohammadi, Hamid Alinejad-Rokny, Parisa Khoshvaght, Thantrira Porntaveetus, Amir Masoud Rahmani   +10 more
doaj   +2 more sources

24-Hour Fetal/Maternal Monitoring System Based on Phonocardiogram Analysis [PDF]

MATEC Web of Conferences, 2018
The article describes an engineering prototype of the Device for 24-hour monitoring over the functional state of the fetus and mother’s cardiovascular system in the antenatal period of pregnancy.
Zhdanov Dmitry, Bureev Artem, Kosteley Yana   +2 more
doaj   +2 more sources