Development of a Multi-Channel Wearable Heart Sound Visualization System

被引：11

作者：

Guo, Binbin ^{[1
]}

Tang, Hong ^{[1
,2
]}

Xia, Shufeng ^{[3
]}

Wang, Miao ^{[1
]}

Hu, Yating ^{[1
]}

Zhao, Zehang ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Biomed Engn, Dalian 116024, Peoples R China

[2] Dalian Univ Technol, Liaoning Key Lab Integrated Circuit & Biomed Elect, Dalian 116024, Peoples R China

[3] Dalian Univ Technol, Sch Informat & Commun Engn, Dalian 116024, Peoples R China

来源：

JOURNAL OF PERSONALIZED MEDICINE | 2022年 / 12卷 / 12期

基金：

中国国家自然科学基金;

关键词：

phonocardiogram; acoustic sensor; acoustic mapping; sensor arrays; multichannel measurement system;

D O I：

10.3390/jpm12122011

中图分类号：

R19 [保健组织与事业（卫生事业管理）];

学科分类号：

摘要：

A multi-channel wearable heart sound visualization system based on novel heart sound sensors for imaging cardiac acoustic maps was developed and designed. The cardiac acoustic map could be used to detect cardiac vibration and heart sound propagation. The visualization system acquired 72 heart sound signals and one ECG signal simultaneously using 72 heart sound sensors placed on the chest surface and one ECG analog front end. The novel heart sound sensors had the advantages of high signal quality, small size, and high sensitivity. Butterworth filtering and wavelet transform were used to reduce noise in the signals. The cardiac acoustic map was obtained based on the cubic spline interpolation of the heart sound signals. The results showed the heart sound signals on the chest surface could be detected and visualized by this system. The variations of heart sounds were clearly displayed. This study provided a way to select optimal position for auscultation of heart sounds. The visualization system could provide a technology for investigating the propagation of heart sound in the thoracic cavity.

引用

页数：17

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