Multichannel fetal magnetocardiography using SQUID bootstrap circuit

被引：8

作者：

Zhang Shu-Lin ^{[1
,2
]}

Zhang Guo-Feng ^{[1
,2
]}

Wang Yong-Liang ^{[1
,2
]}

Liu Ming ^{[1
,2
]}

Li Hua ^{[1
,2
,3
]}

Qiu Yang ^{[1
,2
,3
]}

Zeng Jia ^{[1
,2
,3
]}

Kong Xiang-Yan ^{[1
,2
]}

Xie Xiao-Ming ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China

[2] Collaborat CAS Shanghai & FZJ, Joint Res Lab Superconduct & Bioelect, Shanghai 200050, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

CHINESE PHYSICS B | 2013年 / 22卷 / 12期

关键词：

SQUID; gradiometer; fetal magnetocardiography; INDEPENDENT COMPONENT ANALYSIS; GRADIOMETER; ELECTRONICS; ALGORITHM; SCHEME;

D O I：

10.1088/1674-1056/22/12/128501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Fetal magnetocardiography (MCG) is a sophisticated non-invasive technique for the fetal heart diagnosis. We constructed a multichannel fetal MCG system based on a novel superconducting quantum interference device (SQUID) direct readout scheme called SQUID bootstrap circuit (SBC). The system incorporates four SBC gradiometers for the signal detection and three SBC magnetometers as the references. The fetal MCG signal at a 28-weeks' gestation was measured. By the fetal MCG signal separation and average, the P-wave and QRS complex can be clearly identified. These results indicate that the SBC is one of the most promising techniques for the fetal MCG recordings.

引用

页数：3

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