Statistical approach to analysis of electrohysterographic signal

Author

Horoba, Knysztof ; Graczyk, Slawomir ; Jezewski, Janusz ; Gacek, Adam ; Wróbel, Janusz

Author_Institution

Dept. of Biomed. Inf., Inst. of Med. Technol. & Equipment, Zabrze, Poland

Volume

2

fYear

1999

fDate

36434

Abstract

The intensity of contraction of the pregnant uterus expressed by intrauterine pressure depends on the quantity of contractile cells being activated at a time. Their electrical activity creates differences of potentials known as electrohysterogram (EHG). The abdominal electrohysterogram can be an alternative to the tocography tool, which is useful in clinical evaluation of the pregnant uterus activity. We describe a procedure for analysis of EHG signal. It performs the running estimation of the ratio of standard deviation to mean value in the signal provided and semi-automatically detects segments of signal corresponding to periods of increased uterine activity. The power carried by the signal in specified frequency band is estimated, which enables power spectrum density tracking for consecutive contractions

Keywords

bioelectric potentials; biological organs; biomechanics; medical signal processing; patient diagnosis; statistical analysis; abdominal electrohysterogram; clinical evaluation; consecutive contractions; contractile cells; electrical activity; electrohysterographic signal; intrauterine pressure; mean value; potentials; power spectrum density tracking; pregnant uterus; pregnant uterus activity; running estimation; segments; specified frequency band; standard deviation; statistical approach; Abdomen; Biomedical informatics; Data acquisition; Frequency estimation; Pregnancy; Signal analysis; Signal detection; Signal processing; Statistical analysis; Tiles;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.804042

Filename

804042