Related Experiment Video
Updated: Sep 24, 2026

Murine Fetal Echocardiography
Published on: February 15, 2013
[Evaluation of fetal development and well-being with the ultrasonic Doppler fetal actocardiograph]
Abstract:
Fetal development and well-being were investigated during pregnancy with respect to the relation between fetal movement (FM) and fetal heart rate (FHR) in 192 normal and 43 high-risk fetuses in the antepartum period utilizing ultrasonic Doppler fetal actocardiograph that enabled the simultaneous and continuous recording of FM and FHR by single ultrasonic probe. The analysis of simultaneously obtained records of FHR and the movements of fetal trunk and legs revealed that gross fetal trunk movement was mainly related with FHR acceleration. The number of FM signal bursts, which was accompanied by fetal trunk rotating movements, showed a peak at 30-31 weeks of gestation and decreased in the other stage of pregnancy. The synchronization rate of FM signal bursts to transient FHR rises increased with gestational age, and the amplitude and inclination of the rise accompanied by bursts increased linear from the 24th to the 38th week of gestation. Fetuses of high-risk pregnancy produced on antepartum actocardiogram with low FM and FHR values. The changes were particularly remarkable in the cases of intrauterine growth retardation and/or gestosis.
Related Concept Videos
Assessing Blood pressure using a doppler ultrasound
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Ultrasonography
During an ultrasonography procedure, a handheld device called a...
Fetal Circulation
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS):
Ultrasound I: Abdominal Ultrasonography
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
Imaging Studies II: Ultrasonography

