Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

The ultrasonic Doppler fetal actocardiogram and its computer processing.

K Maeda1, M Tatsumura, K Nakajima

  • 1Department of Obstetrics and Gynecology, Tottori University School of Medicine, Yonago, Japan.

Journal of Perinatal Medicine
|January 1, 1988
PubMed
Summary

This study introduces the fetal actocardiogram to monitor fetal movement alongside fetal heart rate (FHR). This method enables automatic recognition of fetal behavioral states and detection of distress.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effect of serotonergic agents on regional concentrations of somatostatin- and neuropeptide Y-like immunoreactivities in rat brain.

Brain research·1992
Same author

[A study of Epstein-Barr virus-associated hemophagocytic syndrome successfully treated with VP16 and analysis of T cell receptor chain genes of the bone marrow cells].

[Rinsho ketsueki] The Japanese journal of clinical hematology·1992
Same author

Antitumor effect of triphenylethylene derivative (TAT-59) against human breast carcinoma xenografts in nude mice.

Journal of surgical oncology·1992
Same author

Plasma prolactin as a predictor of relapse in drug-free schizophrenic outpatients.

Biological psychiatry·1992
Same author

Contact hypersensitivity reaction to ovalbumin in newborn guinea pigs from maternally sensitized animals.

Journal of dermatological science·1992
Same author

Melanocyte-stimulating properties of arachidonic acid metabolites: possible role in postinflammatory pigmentation.

Pigment cell research·1992

Area of Science:

  • Obstetrics and Gynecology
  • Fetal Physiology
  • Medical Ultrasound Technology

Background:

  • Fetal movement is a key indicator of fetal well-being.
  • Current methods for assessing fetal movement can be subjective.
  • Understanding fetal behavioral states is crucial for prenatal care.

Purpose of the Study:

  • To develop and validate a novel method for objectively quantifying gross fetal movement.
  • To correlate fetal movement patterns with fetal heart rate (FHR) and behavioral states.
  • To explore the potential for automated recognition of fetal behavioral states.

Main Methods:

  • Utilized a lower frequency ultrasonic Doppler shift to detect gross fetal movement.
  • Recorded fetal movement signals as deflections on a CTG chart alongside FHR.

Related Experiment Videos

  • Analyzed actocardiogram data using computer-based statistical methods and 3D histograms.
  • Developed an envelope curve analysis for deflection patterns.

    • Main Results:

    • Fetal actocardiograms revealed bursts of active fetal movement during active fetal states, concordant with FHR accelerations.
    • A non-reactive FHR state, indicative of potential fetal distress, was characterized by loss of FHR acceleration and concurrent fetal movement.
    • Automated analysis successfully recognized distinct fetal behavioral states, including active and resting states.
    • Fetal breathing movements were also identifiable through the actocardiogram analysis.

    Conclusions:

    • The fetal actocardiogram provides an objective measure of fetal movement.
    • This technique facilitates the study of fetal behavioral states and their relationship with FHR.
    • Automated analysis of the fetal actocardiogram shows promise for real-time monitoring and early detection of fetal compromise.