Results 51 to 60 of about 1,616 (163)

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

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

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

Passive Fetal Monitoring by Advanced Signal Processing Methods in Fetal Phonocardiography

IEEE Access, 2020
Fetal phonocardiography (fPCG) is a non-invasive technique for detection of fetal heart sounds (fHSs), murmurs and vibrations. This acoustic recording is passive and provides an alternative low-cost method to ultrasonographic cardiotocography (CTG ...
Radek Martinek, Katerina Barnova, Rene Jaros, Radana Kahankova, Tomasz Kupka, Michal Jezewski, Robert Czabanski, Adam Matonia, Janusz Jezewski, Krzysztof Horoba   +9 more
doaj   +1 more source

Imaging of the heart with phonocardiography

bams, 2013
Abstract This paper focuses on techniques of phonocardiographic image registration. Simultaneous measurements of sound wave amplitudes from above the chest of a healthy person were performed by means of piezoelectric microphones. The location of the source of sound waves can be determined by implementing the size of the amplitudes. Sound
Anna Sochocka, Tomasz Kawa, Konrad Kopanski, Monika Kujdowicz, Pawel Lasko, Stanislaw Micek, Roman Planeta, Magdalena Smolen, Zbigniew Sosin, Dorota Sobczyk   +9 more
openaire   +2 more sources

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

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  

Cardiac Multi-Frequency Vibration Signal Sensor Module and Feature Extraction Method Based on Vibration Modeling

Sensors
Cardiovascular diseases pose a long-term risk to human health. This study focuses on the rich-spectrum mechanical vibrations generated during cardiac activity. By combining Fourier series theory, we propose a multi-frequency vibration model for the heart,
Zhixing Gao, Yuqi Wang, Kang Yu, Zhiwei Dai, Tingting Song, Jun Zhang, Chengjun Huang, Haiying Zhang, Hao Yang   +8 more
doaj   +1 more source

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