نتایج جستجو برای: abdominal ecg
تعداد نتایج: 122496 فیلتر نتایج به سال:
the patient was a 23-year-old man referred to the emergency department (ed) with the chief complaint of palpitation. the patient experienced dizziness, cold sweating, and lightheadedness after getting up which started spontaneously. he had four episodes of the same problems in seven months ago that felt better after taking 10 mg propranolol. but, in the current episode his problem was not solve...
abstract background and purpose: method: results: conclusion: key words: journal of medical education winter and spring 2007; 11 (1,2): 27-36 ecg interpretation, emergency medicine residents, internal medicine residents our study revealed that the overall scores in ecg interpretation are low and the ecginterpretation skill in im residents was better compared to em residents....
Objectives: This descriptive study was performed to evaluate the capability of a non-invasive transabdominal electrocardiographic system to extract clear fetal electrocardiographic (FECG) measurements from intrauterine growth restricted (IUGR) fetuses and to assess whether abdominal FECG parameters can be developed as markers for evaluating the fetal cardiac status in IUGR. Methods: Transabdomi...
OBJECTIVES This paper describes a methodology for the monitoring of the fetal cardiac health status during pregnancy, through the effective and non-invasive monitoring of the abdominal ECG signals (abdECG) of the mother. METHODS For this purpose, a three-stage methodology has been developed. In the first stage, the fetal heart rate (fHR) is extracted from the abdECG signals, using nonlinear a...
Abstract Breech presentation, i.e. the abnormal lie of a foetus longitudinally with buttocks closest to mother’s cervix, is common issue affecting up 5% women during delivery resulting in poor outcomes such as traumatic labour, infection and increased neonatal mortality. Currently, abdominal palpation screening method choice for breech presentation; however, 15,000 presentations remain undiagno...
پیش زمینه و هدف: شایع ترین مودالیته تشخیصی آمبولی ریه، ct آنژیوگرافی (cta) هست. به علت ارزان بودن و در دسترس بودن، ارزیابی الکتروکاردیوگرام (ecg) اولین اقدام در بیماران مشکوک به آمبولی ریه هست. بااین حال، ecg هیچ معیار یا تظاهرات حساس یا اختصاصی را برای شناسایی آمبولی ریه ارائه نمی دهد. لذا بر آن شدیم تا ارتباط شدت آمبولی ریه در cta را با تغییرات ecg ارزیابی نماییم.روش کار: در این مطالعه، تعداد...
background :in addition to diagnosing the acute myocardial infarction (mi), stratifying high-risk patients and proper treatment strategies are important issues in managing patients complaining of chest pain and suspecting mi. many studies have been conducted to predict the occlusion site by interpreting the st segment deviations in electrocardiogram (ecg).additional posterior and right precordi...
در سال های اخیر، روش های بسیاری برای فشرده سازی داده های دیجیتالی معرفی شده اند، که کاربرد بسیاری در سیستم های مخابراتی دارند. این روش ها در زمینه های دیگری از جمله سیستم های تشخیص پزشکی کاربرد یافته-اند. هدف این پروژه یافتن روشی کارآمد جهت فشرده سازی تلفاتی سیگنال 12 کاناله قلب است به گونه ای که اطلاعات تشخیصی از بین نرود. روش پیشنهاد شده در این رساله، با به کارگیری پیش پردازش ها و استفاده از ...
Introduction of multidetector computed tomography (MDCT) into daily clinical use has been a breakthrough in the thoracic imaging. It allowed one breathhold scanning of the entire chest, and thin sections made multiplanar and volumetric reconstructions easily available. Initially, the main interest focused on the abdominal aorta and its branches, however, it turned out, that MDCT allows for an e...
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...
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