نتایج جستجو برای: fetal electrocardiography fecg
تعداد نتایج: 102362 فیلتر نتایج به سال:
Knowledge of the foetal heart signal prevents Foetal problems in the earlier stage. Recently, there has been a growing interest study on extraction of FECG using noninvasive method rather than the old invasive method which was more risky for the mother’s health. The problems of extraction of the Foetal signals are the problems that plagued researchers in the field of signal processing. The Obje...
Fetal heart rate (FHR) sampling rate used on the bedside is equal or less than 4 Hz. Current FHR analysis methods fail to detect incipient fetal acidemia. In a fetal sheep model of human labour we showed that FHR sampling rates near 1000 Hz are needed to detect fetal acidemia. Trans-abdominal fetal ECG (t-a fECG) sampling FHR at 900 Hz combined with a complex signals bioinformatics approach sho...
BACKGROUND The fetal anomaly ultrasound only detects 65 to 81 % of the patients with congenital heart disease, making it the most common structural fetal anomaly of which a significant part is missed during prenatal life. Therefore, we need a reliable non-invasive diagnostic method which improves the predictive value for congenital heart diseases early in pregnancy. Fetal electrocardiography co...
We present a novel application of an echo state neural network (ESN) to noninvasive foetal electrocardiogram (FECG) extraction. Extraction of the FECG is performed on abdominal recordings of pregnant women via maternal ECG cancellation. The FECG can then be used for foetal health monitoring by extracting clinically interpretable features. We show that optimising an ESN by random search gives al...
There is a need for affordable, widely deployable maternal-fetal ECG monitors to improve maternal and fetal health during pregnancy and delivery. Based on the diffusion-based channel selection, here we present the mathematical formalism and clinical validation of an algorithm capable of accurate separation of maternal and fetal ECG from a two channel signal acquired over maternal abdomen. The p...
شناسایی ژن‌های مؤثر بر چندقلوزایی اهمیت به سزایی در شناخت ذخایر ژنتیکی و برنامه‌ی اصلاح ژنتیکی دارد. از جمله مهم‌ترین ژن‌هایی که بر میزان چند قلوزایی مؤثر هستند می‌توان به ژن‌های FecB، FecG و FecX اشاره کرد. هدف از این مطالعه، بررسی وجود جهش‌های FecB و FecGH در بزهای نژاد لری استان لرستان می‌باشد. بدین منظور از 50 رأس بز لری (با سا...
One of the basic problems in the analysis of the rhythm and the shape of the fetal ECG (FECG) is the interference caused by the electrical activity of the maternal heart (MECG). Methods devised for suppressing the maternal signals in the abdominally recorded leads obviously have to rely on differences in the characteristics of both kinds of signals. In the past various differences have been emp...
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