BACKGROUND Stent-graft migration is a late-term complication of endovascular abdominal aortic aneurysm repair (EVAR). A recent published study suggests that stent graft migration could be explained only by aortic neck elongation, mimicking the appearance of distal stent graft migration. Several studies about the use of dynamic CT Angiography (CTA) in the evaluation of aortic conformation change...

This paper is focused on the design, implementation and verification of a novel method for the optimization of the control parameters (such as step size μ and filter order N) of LMS and RLS adaptive filters used for noninvasive fetal monitoring. The optimization algorithm is driven by considering the ECG electrode positions on the maternal body surface in improving the performance of these adap...

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 MATERIALS AND METHODS Here, we extract fetal ECG from maternal abdominal recordings and detect R-peaks in order to recognize fetal heart rate. On t...

BACKGROUND The fundamental assumptions for various kinds of fetal electrocardiogram (fECG) extraction methods are not consistent with each other, which is a very important problem needed to be ascertained. METHODS Based on two public databases, the regularity on ECG wave durations for normal sinus rhythm is investigated statistically. Taking the ascertained regularity as an assumption, a new ...

Fetal electrocardiogram (FECG) signals contain important information about the conditions of fetus during pregnancy. Currently, pure FECG can only be obtained through an invasive acquisition process, which is life threatening to both mother and fetus. In this study, single-channel ECG from mother’s abdomen are analyzed with aim extracting clean waveform. This a challenging task due very low amp...

Abstract Congenital heart disease (CHD) is a leading cause of infant death. To diagnose CHD, recordings from abdominal fetal electrocardiograms (fECG) can be used as non-invasive tool. However, it challenging to extract the signal fECG partly due lack data combining with ground truth for signal, which obtained by using scalp electrode during delivery. In this study, we present computational mod...

August 23, 2016 e109 CORRPONDENCE To the Editor: I read with great interest the case report by Hibbs et al1 on a patient with acute gastric distension in whom the ECG showed prominent J waves and then marked ST-segment elevation in the inferolateral leads. Laboratory and imaging studies were not consistent with myocardial infarction. Resolution of the gastric distension was accompanied by norma...

August 23, 2016 e109 CORRPONDENCE To the Editor: I read with great interest the case report by Hibbs et al1 on a patient with acute gastric distension in whom the ECG showed prominent J waves and then marked ST-segment elevation in the inferolateral leads. Laboratory and imaging studies were not consistent with myocardial infarction. Resolution of the gastric distension was accompanied by norma...

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 ...