نتایج جستجو برای: abdominal ecg

تعداد نتایج: 122496  

2014
Winnie Rachel Cherian

Electrocardiogram (ECG) is a valuable technique that has been in use for over a century. The analysis of fetal ECG signal has always been an interesting topic in the field of signal processing. The presence of noises in the ECG signal causes distortion in the signal morphology. While analyzing the fetal ECG this distortion of the signal is much more severe as the fetal ECG is much weaker than t...

Journal: :journal of biomedical physics and engineering 0
a karimi rahmati control and intelligent processing center of excellence, school of electrical and computer engineering, college of engin s k setarehdan control and intelligent processing center of excellence, school of electrical and computer engineering, college of enginسازمان اصلی تایید شده: دانشگاه تهران (tehran university) b n araabi control and intelligent processing center of excellence, school of electrical and computer engineering, college of enginسازمان اصلی تایید شده: دانشگاه تهران (tehran university)

background: fetal electrocardiography is a developing field that provides valuable information on the fetal health during pregnancy. by early diagnosis and treatment of fetal heart problems, more survival chance is given to the infant. objective: here, we extract fetal ecg from maternal abdominal recordings and detect r-peaks in order to recognize fetal heart rate. on the next step, we find a b...

2016
Kwang-Jin Lee Boreom Lee

Fetal heart rate (FHR) is an important determinant of fetal health. Cardiotocography (CTG) is widely used for measuring the FHR in the clinical field. However, fetal movement and blood flow through the maternal blood vessels can critically influence Doppler ultrasound signals. Moreover, CTG is not suitable for long-term monitoring. Therefore, researchers have been developing algorithms to estim...

2016
K. Assaleh B. D. Moor J. Vandewalle M. Martínez-Sober E. Soria-Olivas Khaled Assaleh

The fetal electrocardiogram (FECG) signal reflects the electrical activity of the fetal heart. It contains information about the health status of the fetus and therefore, an early diagnosis of any cardiac defects before delivery increases the effectiveness of the appropriate treatment. The proposed approach extracts the FECG from two ECG signals recorded at the thoracic and abdominal areas of t...

2012
Bertrand Rivet Mohammad Niknazar Christian Jutten

In this work, we tackle the problem of fetal electrocardiogram (ECG) extraction from a single sensor. The proposed method is based on non-parametric modelling of the ECG signal described thanks to its second order statistics. Each assumed source in the mixture is thus modelled as a second order process thanks to its covariance function. This modelling allows to reconstruct each source by maximi...

Mehdi Mirzaee Mohammad Javad Fallahi Seyed Masoom Masoompour

Pulmonary embolism is considered as a great masquerader due to its frequent nonspecific signs and symptoms. Typically pulmonary embolism is under-diagnosed or over-diagnosed. In this study a patient with pulmonary embolism is reported in which the patient exhibited two unusual manifestations namely; right upper quadrant abdominal pain and ST-T elevation in anterior precordial leads. Due to the ...

2016
Qiong Yu Qun Guan Ping Li Tie-Bing Liu Xiao-Lin Huang Ying Zhao Hong-Xing Liu Yuan-Qing Wang

BACKGROUND Almost all promising non-invasive foetal ECG extraction methods involve accurately determining maternal ECG R-wave peaks. However, it is not easy to robustly detect accurate R-wave peaks of the maternal ECG component in an acquired abdominal ECG since it often has a low signal-to-noise ratio (SNR), sometimes containing a large foetal ECG component or other noises and interferences. T...

2015
Huei-Ming Yeh Yi-Chung Chang Chen Lin Chien-Hung Yeh Chien-Nan Lee Ming-Kwang Shyu Ming-Hui Hung Po-Ni Hsiao Yung-Hung Wang Yu-Hsin Tseng Jenho Tsao Ling-Ping Lai Lian-Yu Lin Men-Tzung Lo

BACKGROUND Monitoring of fetal heart rate (FHR) is important during labor since it is a sensitive marker to obtain significant information about fetal condition. To take immediate response during cesarean section (CS), we noninvasively derive FHR from maternal abdominal ECG. METHODS We recruited 17 pregnant women delivered by elective cesarean section, with abdominal ECG obtained before and d...

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