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Open AccessArticle

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

by 1, 1, 1, 1, 1,2,* and 1,3,*
1
Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China
2
Key Laboratory for National Defense Science and Technology of Innovation Micro-Nano Devices and System Technology, Chongqing 400030, China
3
Chongqing Engineering Research Center of Medical Electronics Technology, Chongqing 400030, China
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2021, 11(2), 651; https://doi.org/10.3390/app11020651
Received: 16 December 2020 / Revised: 6 January 2021 / Accepted: 7 January 2021 / Published: 11 January 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. As a commonly used deep learning network, convolutional neural network (CNN) has been widely used in images. In this paper, the method of analyzing heart sound through using CNN has been studied. Firstly, the original data set was preprocessed, and then the heart sounds were segmented on U-net, based on the deep CNN. Finally, the classification of heart sounds was completed through CNN. The data from 2016 PhysioNet/CinC Challenge was utilized for algorithm validation, and the following results were obtained. When the heart sound segmented, the overall accuracy rate was 0.991, the accuracy of the first heart sound was 0.991, the accuracy of the systolic period was 0.996, the accuracy of the second heart sound was 0.996, and the accuracy of the diastolic period was 0.997, and the average accuracy rate was 0.995; While in classification, the accuracy was 0.964, the sensitivity was 0.781, and the specificity was 0.873. These results show that deep learning based on CNN shows good performance in the segmentation and classification of the heart sound signal. View Full-Text
Keywords: cardiovascular disease; heart sounds; convolutional neural network; segmentation; classification cardiovascular disease; heart sounds; convolutional neural network; segmentation; classification
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MDPI and ACS Style

He, Y.; Li, W.; Zhang, W.; Zhang, S.; Pi, X.; Liu, H. Research on Segmentation and Classification of Heart Sound Signals Based on Deep Learning. Appl. Sci. 2021, 11, 651. https://doi.org/10.3390/app11020651

AMA Style

He Y, Li W, Zhang W, Zhang S, Pi X, Liu H. Research on Segmentation and Classification of Heart Sound Signals Based on Deep Learning. Applied Sciences. 2021; 11(2):651. https://doi.org/10.3390/app11020651

Chicago/Turabian Style

He, Yi; Li, Wuyou; Zhang, Wangqi; Zhang, Sheng; Pi, Xitian; Liu, Hongying. 2021. "Research on Segmentation and Classification of Heart Sound Signals Based on Deep Learning" Appl. Sci. 11, no. 2: 651. https://doi.org/10.3390/app11020651

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