Monitoring fetal development with magnetocardiography

N. S. Padhye, A. Brazdeikis, M. T. Verklan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Fetal heart rate variability (fHRV) is useful for noninvasive assessment of the status of the autonomic nervous system of the developing fetus. In this pilot study we acquired fetal magnetocardiograms (fMCG) in a magnetically shielded environment Each recording was of 5-minute duration and was subsequently repeated in a high-frequency noise environment to examine the feasibility of conducting future recordings in clinical environments that lack facilities for magnetic shielding. The fMCG (n=17) were recorded at 9 spatial locations above the pregnant abdomen at 26 to 35 weeks gestational age (GA) by a second-order SQUID gradiometer. The signal-to-noise was adequate for reliable QRS detection even in the noisy environment, especially for GA ≥ 30. The total spectral power of the RR-series, as well as band powers at low (0.05 to 0.25 Hz) and high (0.25 to 1.00 Hz) frequencies independently exhibited an increasing trend with GA. There was no evidence of bias in spectral power due to lack of shielding. These results provide experimental evidence supporting further studies in magnetically unshielded environments and may have an important implication for future clinical use of fMCG in the assessment of fHRV.

Original languageEnglish (US)
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Pages3609-3610
Number of pages2
Volume26 V
StatePublished - 2004
Externally publishedYes
EventConference Proceedings - 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2004 - San Francisco, CA, United States
Duration: Sep 1 2004Sep 5 2004

Other

OtherConference Proceedings - 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2004
CountryUnited States
CitySan Francisco, CA
Period9/1/049/5/04

Fingerprint

Fetal monitoring
Magnetocardiography
Magnetic shielding
SQUIDs
Neurology
Shielding

Keywords

  • Fetal magnetocardiography
  • Heart rate variability
  • Power spectrum

ASJC Scopus subject areas

  • Bioengineering

Cite this

Padhye, N. S., Brazdeikis, A., & Verklan, M. T. (2004). Monitoring fetal development with magnetocardiography. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 26 V, pp. 3609-3610)

Monitoring fetal development with magnetocardiography. / Padhye, N. S.; Brazdeikis, A.; Verklan, M. T.

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 26 V 2004. p. 3609-3610.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Padhye, NS, Brazdeikis, A & Verklan, MT 2004, Monitoring fetal development with magnetocardiography. in Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 26 V, pp. 3609-3610, Conference Proceedings - 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2004, San Francisco, CA, United States, 9/1/04.
Padhye NS, Brazdeikis A, Verklan MT. Monitoring fetal development with magnetocardiography. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 26 V. 2004. p. 3609-3610
Padhye, N. S. ; Brazdeikis, A. ; Verklan, M. T. / Monitoring fetal development with magnetocardiography. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 26 V 2004. pp. 3609-3610
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