Non-invasive determination of electromechanical time intervals of cardiac cycle using abdominal ECG and doppler ultrasound signals from fetal hearts

A. H. Khandoker, Y. Kimura, T. Ito, M. Palaniswami

研究成果: Conference contribution

6 被引用数 (Scopus)

抄録

Fetal ECG and Doppler ultrasound signals provide clinically significant information concerning the physiological state of a fetus. In this study, we propose a non-invasive system to recognize the timings of fetal cardiac events on the basis of analysis of fetal ECG and Doppler ultrasound signal together. Fetal ECG was extracted from transabdominal ECG (10 normal subjects, 38-41 weeks of gestation) using blind source separation with the reference signal. Multiresolution wavelet analysis enabled the frequency contents of the Doppler signals to be linked to the opening and closing of the heart's valves (Aortic and mitral). The time intervals from R peak of fetal ECG to opening and closing of aortic valve were found to be 99.16±22.07 (msec) and 222.70±21.83 (msec) respectively. The time intervals from R peak to opening and closing of mitral valve were found to be 305.32±22.71 (msec) and 37.84±18.23 (msec) respectively.

本文言語English
ホスト出版物のタイトルComputers in Cardiology 2007, CAR 2007
ページ657-660
ページ数4
DOI
出版ステータスPublished - 2007 12 1
イベントComputers in Cardiology 2007, CAR 2007 - Durham, NC, United States
継続期間: 2007 9 302007 10 3

出版物シリーズ

名前Computers in Cardiology
34
ISSN(印刷版)0276-6574

Other

OtherComputers in Cardiology 2007, CAR 2007
国/地域United States
CityDurham, NC
Period07/9/3007/10/3

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 循環器および心血管医学

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