نتایج جستجو برای: noninvasive fetal electrocardiogram

تعداد نتایج: 132781  

2006
R. Sameni F. Vrins F. Parmentier C. Hérail V. Vigneron M. Verleysen C. Jutten M. B. Shamsollahi

Blind source separation (BSS) techniques have revealed to be promising approaches for the noninvasive extraction of fetal cardiac signals from maternal abdominal recordings. From previous studies, it is now believed that a carefully selected array of electrodes well-placed over the abdomen of a pregnant woman contains the required ‘information’ for BSS, to extract the complete fetal components....

2013
Martyn N. J. Paley Janet E. Morris Debbie Jarvis Paul D. Griffiths

We have developed a Magnetic Resonance Imaging (MRI)-compatible system to enable gating of a scanner to the heartbeat of a foetus for cardiac, umbilical cord flow and other possible imaging applications. We performed radiofrequency safety testing prior to a fetal electrocardiogram (fECG) gated imaging study in pregnant volunteers (n = 3). A compact monitoring device with advanced software capab...

Journal: :international journal of molecular and cellular medicine 0
mohammad kazemi department of genetics and molecular biology, school of medicine, isfahan university of medical sciences, isfahan, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences)سازمان های دیگر: pediatric inherited diseases research center, re search institute for primordial prevention of non- pediatric inherited diseases research center, re search institute for primordial prevention of non-communicable disease, isfahan university of medical sciences, isfahan, iran. mansoor salehi medical genetic center of genome, isfahan, iran.سازمان های دیگر: pediatric inherited diseases research center, re

down syndrome (ds) is a birth defect with huge medical and social costs, caused by trisomy of whole or part of chromosome 21. it is the most prevalent genetic disease worldwide and the common genetic cause of intellectual disabilities appearing in about 1 in 400-1500 newborns. although the syndrome had been described thousands of years before, it was named after john langdon down who described ...

2015
Bogdan HUREZEANU Dragoş ŢARĂLUNGĂ Rodica STRUNGARU Ilinca GUSSI Werner WOLF Mihaela UNGUREANU B. Hurezeanu D. Ţarălungă Rodica Strungaru Ilinca Gussi W. Wolf Mihaela Ungureanu

Fetal electrocardiogram (fECG) analysis, i.e., the analysis of the heart rate (HR) and the fECG morphology, offers clinicians vital information about fetal health condition. The fECG can be acquired non-invasively by applying electrodes on maternal abdomen, but the recorded abdominal signal (ADS) contains not only the signal of interest, fECG, but also some physiological (e.g., maternal electro...

Journal: :Donald School Journal of Ultrasound in Obstetrics and Gynecology 2011

Journal: :iranian journal of fuzzy systems 2008
c. kezi selva vijiila p. kanagasabapathy

in this paper, we propose a technique of artificial intelligence called adaptive neuro fuzzy inference system (anfis) for canceling maternal electrocardiogram (mecg) in fetal electrocardiogram extraction (fecg).this technique is used to estimate the mecg present in the abdominal signal of a pregnant woman. the fecg is then extracted by subtracting the estimated mecg from the abdominal signal. p...

2017
Faezeh Marzbanrad Ahsan H. Khandoker Yoshitaka Kimura Marimuthu Palaniswami Gari D. Clifford

An automated method to assess the fetal physiological development is introduced which uses the component intervals between fetal cardiac valve timings and the Q-wave of fetal electrocardiogram (fECG). These intervals were estimated automatically from one-dimensional Doppler Ultrasound and noninvasive fECG. We hypothesize that the fetal growth can be estimated by the cardiac valve intervals. Thi...

2014
Bouabida Zohra Hadj Slimane Zinne Eddine Fethi Bereksi-Reguig

The acquisition and the analysis of electrophysiological signals are often followed by the detection of parameters of clinical importance. In the case of fetal electrocardiogram signal, the presence of QRS complex is the best indicator of the fetal heart rate, as it is directly correlated with the fetal cardiac activity. However, to detect this complex, it is necessary to separate the signal fr...

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