Results 41 to 50 of about 916,312 (327)

The use of ultrasonographic measurement of the heart size and fetal heart rate variation for gestational age determination in local Bulgarian goats

open access: yesVeterinary Medicine and Science, 2021
Background Determination of gestational age in goats was performed using ultrasound measurements of different fetal biometric parameters. There are no data showing quadratic and exponential dependence between fetal heart parameters and gestational age ...
Manol Karadaev   +3 more
doaj   +1 more source

Non‐invasive recordings of fetal electrocardiogram during pregnancy using electric potential sensors [PDF]

open access: yes, 2018
In this letter, we report the early detection of fetal cardiac electrical activity recorded from the maternal abdomen non-invasively. We developed a portable and non-invasive, prototype based on electric potential sensing technology to monitor both: the ...
Aviles-Espinosa, R   +2 more
core   +1 more source

Hierarchical Probabilistic Framework for Fetal R-Peak Detection, Using ECG Waveform and Heart Rate Information

open access: yesIEEE Transactions on Signal Processing, 2018
The abdominal fetal electrocardiogram (fECG) can provide valuable information about fetal well-being. However, fetal R-peak detection in abdominal fECG recordings is challenging due to the low signal-to-noise ratio (SNR) and the nonstationary nature of ...
G. Warmerdam   +4 more
semanticscholar   +1 more source

Prenatally diagnosed fetal heart rhythm abnormalities—incidence, diagnosis and outcome

open access: yesClinical and Experimental Obstetrics & Gynecology, 2022
Backrounds: Fetal arrhythmias represent a significant cause of fetal morbidity and mortality and occur in approximately 1–3% of pregnancies. The unknown fetal arrhythmias are the cause of intrauterine fetal demise in as many as 3–10% of cases, as well as
Jelena Stamenković   +7 more
doaj   +1 more source

Computerised interpretation of fetal heart rate during labour (INFANT): a randomised controlled trial

open access: yesThe Lancet, 2017
Summary Background Continuous electronic fetal heart-rate monitoring is widely used during labour, and computerised interpretation could increase its usefulness.
Peter David Keith Ed Robert Sara Louise Christopher Mary Brocklehurst Field Greene Juszczak Keith Kenyon Li   +13 more
semanticscholar   +1 more source

Cascade of Nonlinear Entropy and Statistics to Discriminate Fetal Heart Rates [PDF]

open access: yes, 2016
International audience—Fetal heart rate discrimination is an evolving field in biomedical engineering with many efforts dedicated to avoid preterm deliveries by way of improving fetus monitoring methods and devices. Entropy analysis is a nonlinear signal
Bouakaz, Ayache   +4 more
core   +2 more sources

Fetal heart rate following coelocentesis

open access: yesThe Journal of Maternal-Fetal Medicine, 1997
For psychological reasons, coelocentesis was performed in 20 women prior to termination of pregnancy, at 6-11 weeks of gestation. The fetal heart rate (FHR) was measured immediately before the procedure and at 1, 5, and 10 min afterward. There was no significant difference between FHR before coelocentesis compared to the values at 1 min (mean = 158 ...
Makrydimas, G.   +4 more
openaire   +4 more sources

A clustering-based method for single-channel fetal heart rate monitoring

open access: yesPLoS ONE, 2018
Non-invasive fetal electrocardiography (ECG) is based on the acquisition of signals from abdominal surface electrodes. The composite abdominal signal consists of the maternal electrocardiogram along with the fetal electrocardiogram and other electrical ...
Encarnación Castillo   +5 more
semanticscholar   +1 more source

Extracting fetal heart beats from maternal abdominal recordings: Selection of the optimal principal components [PDF]

open access: yes, 2014
This study presents a systematic comparison of different approaches to the automated selection of the principal components (PC) which optimise the detection of maternal and fetal heart beats from non-invasive maternal abdominal recordings.
Di Maria, Costanzo   +4 more
core   +1 more source

Effects of three different stimulations (acupuncture, moxibustion, acupuncture plus moxibustion) of BL.67 acupoint at small toe on fetal behavior of breech presentation [PDF]

open access: yes, 2007
The aim of the study was to evaluate cardiovascular effects and fetal behavior during moxibustion, acupuncture or acupuncture plus moxibustion applied on the BL.67 acupoint of women (beside the outer corner of the 5th toenail) in fetal breech ...
De Pace V   +3 more
core   +1 more source

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