Results 51 to 60 of about 1,623 (161)

Cardiorespiratory system monitoring using a developed acoustic sensor

Healthcare Technology Letters, 2018
This Letter proposes a wireless acoustic sensor for monitoring heartbeat and respiration rate based on phonocardiogram (PCG). The developed sensor comprises a processor, a transceiver which operates at industrial, scientific and medical band and the ...
Reza Abbasi-Kesbi, Atefeh Valipour, Khadije Imani   +2 more
doaj   +1 more source

Intracardiac Phonocardiography in Man [PDF]

Circulation, 1957
This paper describes a new method for the detection of sound from within the heart in man. It employs the technic and equipment of underwater listening developed and used by the Navy in antisubmarine warfare. Records are shown to illustrate the localization of heart sound production to an extent not possible by phonocardiograms from the chest wall. The
D H, LEWIS, G W, DEITZ, J D, WALLACE, J R, BROWN   +3 more
openaire   +2 more sources

Phonocardiography Signals Compression with Deep Convolutional Autoencoder for Telecare Applications

Applied Sciences, 2020
Phonocardiography (PCG) signals that can be recorded using the electronic stethoscopes play an essential role in detecting the heart valve abnormalities and assisting in the diagnosis of heart disease.
Ying-Ren Chien, Kai-Chieh Hsu, Hen-Wai Tsao   +2 more
doaj   +1 more source

A Comprehensive Nomogram Integrating Phonocardiogram and Echocardiogram Features for the Diagnosis of Heart Failure With Preserved Ejection Fraction

Clinical Cardiology, Volume 47, Issue 11, November 2024.
A total of 204 patients and 49 features were collected. After splitting the population into training and test sets according to a ratio of 7:3, the LASSO and logistic regression was used to select the final five factors for a nomogram. The AUC for the nomogram model is 0.945, while the AUC for the echocardiographic parameters combined with NT‐proBNP in
Linchun Cao, Xingming Guo, Kangla Liao, Jian Qin, Yineng Zheng   +4 more
wiley   +1 more source

PhonoSys: Mobile Phonocardiography Diagnostic System for Newborns

EAI Endorsed Transactions on Mobile Communications and Applications, 2016
Heart murmurs have been found to be a life threatening condition for the newborns who are born with cardiac abnormalities. The first sign of pathological changes of heart valves appears in phonocardiogram which contains very useful information about ...
Amir Mohammad Amiri, Giuliano Armano, Amir Mohammad Rahmani, Kunal Mankodiya   +3 more
doaj   +1 more source

Learning technology in health professions education: Realising an (un)imagined future

Medical Education, Volume 58, Issue 1, Page 36-46, January 2024.
Abstract Context Technology is being introduced, used and studied in almost all areas of health professions education (HPE), often with a claim of making HPE better in one way or another. However, it remains unclear if technology has driven real change in HPE.
Rebecca Grainger, Qian Liu, Tehmina Gladman   +2 more
wiley   +1 more source

An Attempt on the Intracardiac Phonocardiography

The Tohoku Journal of Experimental Medicine, 1953
The intracardiac phonocardiography, in the meaning of the prototype of the heart sounds, was obtained by means of a condenser microphone using the body as one pole. The authors take this opportunity to express their sincere gratitude to Mr. Tadashi Fukuda for technical assistance and to Assist. Prof. Tadao Takahashi for reviewing the manuscript.
Yamakawa, Kunio, Shionoya, Yasuo, Nagai, Toichi, Kitamura, Kazuo, Ohta, Satoshi, Yamamoto, Takaya   +5 more
openaire   +3 more sources

Low-Frequency Components of the Heart Sound Corresponding to the Fourth Heart Sound Phase, Assessed by Phonocardiography, Correlate with Early Variations in Echocardiographic Indices Related to Diastolic Function

Medicina
Background and Objectives: The fourth heart sound (S4) is a recognized marker of left ventricular (LV) diastolic dysfunction, suggesting a potential risk of congestive heart failure (CHF).
Kunimasa Yagi, Yuhei Yasui, Shumpei Saito, Makoto Iwazawa, Shimpei Ogawa, Taketsugu Tsuchiya, Tomoya Kaneda, Masaji Miyamoto, Fuminori Yamagishi, Junji Kobayashi, Hideki Origasa, Tatsuya Kawasaki, Naohito Yamasaki, Takashi Muro, Nobuo Fukuda   +14 more
doaj   +1 more source

Metabolic cardiomyopathy. current state of problem

Атеросклероз, 2013
This review presents the current state of metabolic cardiomyopathy problem. The questions of terminology, etiology, pathogenesis, clinical manifestations, staging flow diagnostics, including electrocardiography, echocardiography and phonocardiography ...
N. A. Timoshenko, Yu. I. Ragino, M. I. Voevoda   +2 more
doaj  

Fetal Heart Rate Monitoring from Phonocardiograph Signal Using Repetition Frequency of Heart Sounds

Journal of Electrical and Computer Engineering, 2016
As a passive, harmless, and low-cost diagnosis tool, fetal heart rate (FHR) monitoring based on fetal phonocardiography (fPCG) signal is alternative to ultrasonographic cardiotocography.
Hong Tang, Ting Li, Tianshuang Qiu, Yongwan Park   +3 more
doaj   +1 more source