A new wearable multichannel magnetocardiogram system with a SERF atomic magnetometer array

被引：83

作者：

Yang, Yanfei ^{[2
]}

Xu, Mingzhu ^{[2
]}

Liang, Aimin ^{[3
]}

Yin, Yan ^{[2
]}

Ma, Xin ^{[1
,4
]}

Gao, Yang ^{[5
,6
]}

Ning, Xiaolin ^{[1
,4
]}

机构：

[1] Beihang Univ, Hangzhou Innovat Inst, Hangzhou 310051, Peoples R China

[2] Beihang Univ, Sch Instrumentat Sci & Optoelect Engn, Beijing 100191, Peoples R China

[3] Capital Med Univ, Beijing Childrens Hosp, Natl Ctr Childrens Hlth, Dept Child Hlth Care Ctr, Beijing 100045, Peoples R China

[4] Beihang Univ, Res Inst Frontier Sci, Beijing 100191, Peoples R China

[5] Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China

[6] Beihang Univ, Sch Phys, Beijing 100191, Peoples R China

来源：

SCIENTIFIC REPORTS | 2021年 / 11卷 / 01期

关键词：

ROOM-TEMPERATURE; FIELD; MCG; SENSITIVITY;

D O I：

10.1038/s41598-021-84971-7

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this study, a wearable multichannel human magnetocardiogram (MCG) system based on a spin exchange relaxation-free regime (SERF) magnetometer array is developed. The MCG system consists of a magnetically shielded device, a wearable SERF magnetometer array, and a computer for data acquisition and processing. Multichannel MCG signals from a healthy human are successfully recorded simultaneously. Independent component analysis (ICA) and empirical mode decomposition (EMD) are used to denoise MCG data. MCG imaging is realized to visualize the magnetic and current distribution around the heart. The validity of the MCG signals detected by the system is verified by electrocardiogram (ECG) signals obtained at the same position, and similar features and intervals of cardiac signal waveform appear on both MCG and ECG. Experiments show that our wearable MCG system is reliable for detecting MCG signals and can provide cardiac electromagnetic activity imaging.

引用

页数：11

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