Classifying cases of fetal Wolff-Parkinson-White syndrome by estimating the accessory pathway from fetal magnetocardiograms

Akihiko Kandori, T. Hosono, Y. Chiba, M. Shinto, S. Miyashita, M. Murakami, T. Miyashita, K. Ogata, K. Tsukada

Research output: Contribution to journalReview articlepeer-review

23 Citations (Scopus)


The paper presents an evaluation of the possibility of using fetal magnetocardiogram (FMCG) signals to estimate and classify the accessory pathway in fetal Wolff-Parkinson-White (WPW) syndrome. The FMCG signals of two fetuses with WPW syndrome (type A) were detected using a 64-channel superconducting quantum-interference device system. An average across the cycles of these signals was taken to obtain clear WPW signals. To determine the direction and position of the accessory pathway in a fetal heart accurately, the accessory pathway and activated pathway at the peak of the QRS complex thus obtained were estimated for each fetus, using a single-dipole model. The phase angle (about 90°) between the equivalent current dipoles (ECDs) was the same for both fetuses. This angle suggested that the accessory pathway is in the left side of the heart, i.e. that the pathway exists in the left ventricle, which indicates type A WPW syndrome. Identification of the position of the accessory pathway in a fetus with WPW syndrome from the angle between the ECD of the accessory pathway and the ECD of the peak in the QRS complex was thus demonstrated.

Original languageEnglish
Pages (from-to)33-39
Number of pages7
JournalMedical and Biological Engineering and Computing
Issue number1
Publication statusPublished - Jan 1 2003
Externally publishedYes


  • Current dipoles
  • Equivalent
  • Fetal magnetocardiogram
  • Wolff-Parkinson-White syndrome

ASJC Scopus subject areas

  • Biomedical Engineering
  • Computer Science Applications

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