Fetal bedside magnetocardiograph

Author

Dunajski, Zbigniew ; Palko, Tadeusz

Author_Institution

Inst. of Prec. & Biomed. Eng., Warsaw Univ. of Technol., Poland

Volume

2

fYear

2002

fDate

2002

Firstpage

1399

Abstract

The application of SQUID magnetometers in clinical fetal magnetocardiography is a new tool for investigation of electrophysiology of the fetal heart. A third order gradiometer optimized for maximum sensitivity and high signal to noise ratio is presented. The design and parameters are chosen to enable measurements of the cardiac magnetic field of the fetus. The detection coils configuration exhibit sufficient sensitivity and adequate rejection of uniform fields and field gradients of higher depth noise sources compared with a second order gradiometer used for biomagnetic measurements in an unshielded environment.

Keywords

SQUID magnetometers; bioelectric potentials; magnetocardiography; obstetrics; patient monitoring; SQUID magnetometers; biomagnetic measurements; cardiac magnetic field; clinical fetal magnetocardiography; design; detection coils configuration; electrophysiology; fetal bedside magnetocardiograph; fetal heart; field gradients; high signal to noise ratio; maximum sensitivity; noise sources; second order gradiometer; sensitivity; third order gradiometer; uniform fields; unshielded environment; Biomagnetics; Coils; Fetal heart; Fetus; Magnetic field measurement; Magnetic noise; Noise measurement; SQUID magnetometers; Signal to noise ratio; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint

ISSN

1094-687X

Print_ISBN

0-7803-7612-9

Type

conf

DOI

10.1109/IEMBS.2002.1106449

Filename

1106449