Multichannel fetal magnetocardiography using SQUID bootstrap circuit

doi:10.1088/1674-1056/22/12/128501

中国物理B ›› 2013, Vol. 22 ›› Issue (12): 128501-128501.doi: 10.1088/1674-1056/22/12/128501

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Multichannel fetal magnetocardiography using SQUID bootstrap circuit

张树林^{a b}, 张国峰^{a b}, 王永良^{a b}, 刘明^{a b}, 李华^{a b c}, 邱阳^{a b c}, 曾佳^{a b c}, 孔祥燕^{a b}, 谢晓明^{a b}

a State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences (CAS), Shanghai 200050, China;
b Joint Research Laboratory on Superconductivity and Bioelectronics, Collaboration Between CAS–Shanghai and FZJ, Shanghai 200050, China;
c University of the Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2013-05-23 修回日期:2013-07-11 出版日期:2013-10-25 发布日期:2013-10-25
基金资助:
Projects supported by the Main Direction Program of Knowledge Innovation of the Chinese Academy of Sciences (Grant No. KGCX2-EW-105), the "100 Talents Project" of the Chinese Academy of Sciences and Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB04020300).

Multichannel fetal magnetocardiography using SQUID bootstrap circuit

Zhang Shu-Lin (张树林)^{a b}, Zhang Guo-Feng (张国峰)^{a b}, Wang Yong-Liang (王永良)^{a b}, Liu Ming (刘明)^{a b}, Li Hua (李华)^{a b c}, Qiu Yang (邱阳)^{a b c}, Zeng Jia (曾佳)^{a b c}, Kong Xiang-Yan (孔祥燕)^{a b}, Xie Xiao-Ming (谢晓明)^{a b}

a State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences (CAS), Shanghai 200050, China;
b Joint Research Laboratory on Superconductivity and Bioelectronics, Collaboration Between CAS–Shanghai and FZJ, Shanghai 200050, China;
c University of the Chinese Academy of Sciences, Beijing 100049, China

Received:2013-05-23 Revised:2013-07-11 Online:2013-10-25 Published:2013-10-25
Contact: Zhang Shu-Lin, Kong Xiang-Yan E-mail:zhangsl@mail.sim.ac.cn;xykong@mail.sim.ac.cn
Supported by:
Projects supported by the Main Direction Program of Knowledge Innovation of the Chinese Academy of Sciences (Grant No. KGCX2-EW-105), the "100 Talents Project" of the Chinese Academy of Sciences and Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant No. XDB04020300).

摘要/Abstract

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.

关键词: SQUID, gradiometer, fetal magnetocardiography

Abstract: 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.

Key words: SQUID, gradiometer, fetal magnetocardiography

中图分类号: (Superconducting quantum interference devices (SQUIDs))

85.25.Dq

07.55.Ge (Magnetometers for magnetic field measurements) 52.70.Ds (Electric and magnetic measurements)

张树林, 张国峰, 王永良, 刘明, 李华, 邱阳, 曾佳, 孔祥燕, 谢晓明. Multichannel fetal magnetocardiography using SQUID bootstrap circuit[J]. 中国物理B, 2013, 22(12): 128501-128501.

Zhang Shu-Lin (张树林), Zhang Guo-Feng (张国峰), Wang Yong-Liang (王永良), Liu Ming (刘明), Li Hua (李华), Qiu Yang (邱阳), Zeng Jia (曾佳), Kong Xiang-Yan (孔祥燕), Xie Xiao-Ming (谢晓明). Multichannel fetal magnetocardiography using SQUID bootstrap circuit[J]. Chin. Phys. B, 2013, 22(12): 128501-128501.

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Multichannel fetal magnetocardiography using SQUID bootstrap circuit

Multichannel fetal magnetocardiography using SQUID bootstrap circuit

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