Results 11 to 20 of about 128,271 (260)

Research on Segmentation and Classification of Heart Sound Signals Based on Deep Learning

open access: yesApplied Sciences, 2021
The heart sound signal is one of the signals that reflect the health of the heart. Research on the heart sound signal contributes to the early diagnosis and prevention of cardiovascular diseases.
Yi He   +5 more
doaj   +1 more source

Investigation and analysis on the status of heart sound auscultation and training needs of medical students [PDF]

open access: yesJichu yixue yu linchuang, 2021
Objective To clarify the current direction of improvement of heart sound auscultation teaching. Methods Questionnaire survey was conducted on the students of Peking Union Medical College who had studied diagnostics.
LIN Xue, ZHANG Xiao, LIU Ji-hai, ZHANG Hui, QIAN Xiao-jing, XIAO Ran, FANG Li-gang
doaj  

Heart sound classification based on improved mel-frequency spectral coefficients and deep residual learning

open access: yesFrontiers in Physiology, 2022
Heart sound classification plays a critical role in the early diagnosis of cardiovascular diseases. Although there have been many advances in heart sound classification in the last few years, most of them are still based on conventional segmented ...
Feng Li   +4 more
doaj   +1 more source

A wearable nanoscale heart sound sensor based on P(VDF-TrFE)/ZnO/GR and its application in cardiac disease detection

open access: yesBeilstein Journal of Nanotechnology, 2023
This paper describes a method for preparing flexible composite piezoelectric nanofilms of P(VDF-TrFE)/ZnO/graphene using a high-voltage electrospinning method. Composition and β-phase content of the piezoelectric composite films were analyzed using X-ray
Yi Luo   +5 more
doaj   +1 more source

A recognition method research based on the heart sound texture map

open access: yesAIP Advances, 2016
In order to improve the Heart Sound recognition rate and reduce the recognition time, in this paper, we introduces a new method for Heart Sound pattern recognition by using Heart Sound Texture Map.
Huizhong Cheng   +3 more
doaj   +1 more source

The Effect of Signal Duration on the Classification of Heart Sounds: A Deep Learning Approach

open access: yesSensors, 2022
Deep learning techniques are the future trend for designing heart sound classification methods, making conventional heart sound segmentation dispensable.
Xinqi Bao   +2 more
doaj   +1 more source

Biometric Identification Method for Heart Sound Based on Multimodal Multiscale Dispersion Entropy

open access: yesEntropy, 2020
In this paper, a new method of biometric characterization of heart sounds based on multimodal multiscale dispersion entropy is proposed. Firstly, the heart sound is periodically segmented, and then each single-cycle heart sound is decomposed into a group
Xiefeng Cheng, Pengfei Wang, Chenjun She
doaj   +1 more source

Study on chaotic characteristics of heart sound based on correlation dimension and K entropy

open access: yesAIP Advances, 2019
Heart sound is a kind of non-stationary and nonlinear signal with typical chaotic characteristics. As everyone knows, exercise and age can influence heart function, will they also influence the chaotic characteristics of heart sound?
Chenjun She, Xiefeng Cheng, Jing Wang
doaj   +1 more source

Optimal Site for Precordial Stethoscope Placement in Pediatric Patients Younger Than Two Years: A Preliminary Cross-Sectional Study

open access: yesArchives of Anesthesia and Critical Care, 2021
Background: The precordial stethoscope is a traditional and non-invasive monitoring method during pediatric general anesthesia. In this preliminary cross-sectional study, we aimed to investigate the characteristics of lung and heart sounds via precordial
Hidekazu Ito, Shoji Mizuno, Kenji Iio
doaj   +1 more source

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