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Thèses sur le sujet « Electrocardiography »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 25 juillet 2025

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1

Namprempre, Chanathip. "Electrocardiography in DICOM." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42751.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.<br>Includes bibliographical references (p. 69).<br>by Chanathip Namprempre.<br>M.Eng.

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2

Lopez, Rincon Alejandro. "Le problème inverse en l'électrocardiographie." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR15261/document.

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Dans le problème inverse d’électrocardiographie, le cible est faire la reconstruction de l’activité électrophysiologique dans le cœur sans mesurer directement dans sa surface (sans interventions avec cathéter). Il est important remarque que en l’actualité la solution numérique du problème inverse est résolu avec le modèle quasi-statique. Ce modèle ne considère pas la dynamique du cœur et peut produire des erreurs dans la reconstruction de la solution sur la surface du cœur. Dans cette thèse, différents méthodologies était investigue pour résoudre le problème inverse d’électrocardiographie comm

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3

Rusnak, I. T. "Differentiated electrocardiography to improve diagnostics." Thesis, БДМУ, 2017. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/17086.

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4

Fox, Alice J. Sophia Women's &amp Children's Health Faculty of Medicine UNSW. "Non-invasive procedure for fetal electrocardiography." Awarded by:University of New South Wales. Women's & Children's Health, 2007. http://handle.unsw.edu.au/1959.4/41240.

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Antenatal fetal surveillance is a field of increasing importance in modern obstetrics. Measurements extracted (such as fetal heart rate) from antenatal fetal monitoring techniques have the potential to reduce the social, personal and financial burdens of fetal death on families, health care systems and the community. Techniques to monitor the fetus through pregnancy have been developed with the aim of providing information to enable the clinician to diagnose fetal wellbeing, characterise development and detect abnormality. An early diagnosis before delivery may increase the effectiveness of th

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5

Howell, Stephen John Lamb. "Simultaneous ambulatory cassette electroencephalography and electrocardiography." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316986.

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6

Farina, Dmytro. "Forward and inverse problems of electrocardiography clinical investigation." Karlsruhe : Univ.-Verl. Karlsruhe, 2008. http://d-nb.info/988009609/34.

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7

Crowcombe, James Edward. "Larval zebrafish electrocardiography electrodynmaic modelling and sensor design." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7545/.

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This thesis presents the first model of the electrical activity of the larval zebrafish heart as well as the design and fabrication of novel electrode arrays that were created to measure the electrocardiogram. The model consists of realistic 3D geometry of a 3 day’s post fertilisation zebrafish heart and body with a bidomain electrical model that uses the Fitzhugh-Nagumo equations as the ionic model. The model is able to replicate experimentally observed conduction velocities and action potentials by using region specific parameters and simulate electrocardiograms that are comparable to measur

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8

Mukalaf, A. "Adaptive cancellation techniques for noise reduction in electrocardiography." Thesis, Keele University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380184.

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9

Gao, George Qi. "Computerised detection and classification of five cardiac conditions thesis submitted in partial fulfilment of the degree of Master of Engineering, Auckland University of Technology, May 2003." Full thesis. Abstract, 2003.

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10

DeLong, David James. "Spectral analysis of heart rate variability : acquisition/analysis software development /." Online version of thesis, 1992. http://hdl.handle.net/1850/10858.

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11

Li, Yelei. "Heartbeat detection, classification and coupling analysis using Electrocardiography data." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1405084050.

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12

Aydin, Umit. "Solution Of Inverse Problem Of Electrocardiography Using State Space Models." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611027/index.pdf.

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Heart is a vital organ that pumps blood to whole body. Synchronous contraction of the heart muscles assures that the required blood flow is supplied to organs. But sometimes the synchrony between those muscles is distorted, which results in reduced cardiac output that might lead to severe diseases, and even death. The most common of heart diseases are myocardial infarction and arrhythmias. The contraction of heart muscles is controlled by the electrical activity of the heart, therefore determination of that electrical activity could give us the information regarding the severeness and type of

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13

Bircan, Ali. "Solution Of Inverse Electrocardiography Problem Using Minimum Relative Entropy Method." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612574/index.pdf.

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The interpretation of heart&#039<br>s electrical activity is very important in clinical medicine since contraction of cardiac muscles is initiated by the electrical activity of the heart. The electrocardiogram (ECG) is a diagnostic tool that measures and records the electrical activity of the heart. The conventional 12 lead ECG is a clinical tool that provides information about the heart status. However, it has limited information about functionality of heart due to limited number of recordings. A better alternative approach for understanding cardiac electrical activity is the incorporation of

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14

Perumalla, Calvin A. "Machine Learning and Adaptive Signal Processing Methods for Electrocardiography Applications." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6926.

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This dissertation is directed towards improving the state of art cardiac monitoring methods and automatic diagnosis of cardiac anomalies through modern engineering approaches such as adaptive signal processing, and machine learning methods. The dissertation will describe the invention and associated methods of a cardiac rhythm monitor dubbed the Integrated Vectorcardiogram (iVCG). In addition, novel machine learning approaches are discussed to improve diagnoses and prediction accuracy of cardiac diseases. It is estimated that around 17 million people in the world die from cardia

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15

MacNeil, Toinette. "An LP approach to solving the inverse problem of electrocardiography." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0021/MQ57220.pdf.

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16

Guldenring, Daniel. "Theory and applications of linear lead transformations in computerised electrocardiography." Thesis, Ulster University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.665848.

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17

Hilal, Mohammed Azeez. "Domain decomposition like methods for solving an electrocardiography inverse problem." Thesis, Nantes, 2016. http://www.theses.fr/2016NANT4060.

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L’objectif de cette thèse est d’étudier un problème électrocardiographique (ECG), modélisant l’activité électrique cardiaque en utilisant un modèle bidomaine stationnaire. Deux types de modélisation sont considérées : la modélisation basée sur un modèle mathématique directe et la modélisation basée sur un problème inverse de Cauchy. Dans le premier cas, le problème directe est résolu en utilisant la méthode de décomposition de domaine et l’approximation par la méthode des éléments finis. Dans le deuxième cas le problème inverse de Cauchy de l’ECG a été reformulé en un problème de point fixe. P

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18

Tie, Hii Hui Clinical School St Vincents UNSW. "Cellular mechanisms of QT prolongation and proarrhythmia induced by non-antiarrhythmic drugs." Awarded by:University of New South Wales. Clinical School - St. Vincents, 2002. http://handle.unsw.edu.au/1959.4/19035.

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A variety of drugs prolong cardiac repolarization (manifested as QT prolongation on ECG), although the major example are the so-called class III antiarrhythmics. However, antiarrhythmic drugs which prolong cardiac repolarization are not harmless, as they may also be proarrhythmic, inducing a potentially fatal arrhythmia known as torsade de pointes (TdP). Recently, it has become apparent that a wide variety of non-antiarrhythmic agents may also, as an entirely undesired side-effect, provoke TdP. TdP is also characteristic of the congenital long QT syndrome, one form of which is caused by mutati

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19

Budgett, David Mortimer. "Remote sensing of the epicardium." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363025.

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20

Romosios, Apostolos. "Comparison of algorithms to extract the fetal electrocardiogram signal from the maternal signal." Thesis, University of Nottingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272657.

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21

Chishti, Parveen. "Automated techniques for ECG waveform fiducial point recognition." Thesis, University of Glasgow, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390780.

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22

Hedén, Bo. "Analysis of electrocardiograms using artificial neural networks." Lund : Dept. of Clinical Physiology, Lund University, 1997. http://catalog.hathitrust.org/api/volumes/oclc/39751585.html.

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23

Farina, Dmytro [Verfasser]. "Forward and inverse problems of electrocardiography : clinical investigation / von Dmytro Farina." Karlsruhe : Univ.-Verl. Karlsruhe, 2008. http://d-nb.info/988009609/34.

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24

Huwez, F. U. "Electrocardiography of the left ventricle in coronary artery disease and hypertrophy." Thesis, University of Glasgow, 1990. http://theses.gla.ac.uk/5665/.

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This thesis describes a series of studies which were undertaken to improve the diagnostic accuracy of the electrocardiogram (ECG), given the availability of computer assisted measurement techniques. Scalar 12 lead electrocardiograms have been recorded from over 200 cardiac patients recruited specifically for this study. Over 1,500 additional ECGs were available from normal and abnormal test populations. The ECG measurements were correlated with clinical, echocardiographic, radionuclide, coronary angiographic and contrast angiographic data of the left ventricle in order to meet the aims of the

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25

Kwan, Siu-ki, and 關兆奇. "Development of high performance implantable cardioverter defibrillatorbased statistical analysis of electrocardiography." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B38320289.

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26

Rader, Florian. "Quantitative Electrocardiography for Prediction of Postoperative Atrial Fibrillation after Cardiac Surgery." Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1260380041.

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27

Мороз, В. О. "Електрокардіографія - фізичний метод діагностики". Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/41029.

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Розвиток медицини безпосередньо пов’язаний з розвитком фізики, техніки, комп’ютерних технологій. Фізика озброює медичних працівників знаннями фізичних методів діагностики захворювань та лікування хворих.

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28

Kwan, Siu-ki. "Development of high performance implantable cardioverter defibrillator based statistical analysis of electrocardiography." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B38320289.

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29

Guclu, Alperen. "Comparison Of Five Regularization Methods For The Solution Of Inverse Electrocardiography Problem." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615552/index.pdf.

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Understanding heart&rsquo<br>s electrical activity is very important because coronary problems -such as heart attacks, arrhythmia and stroke- are the leading cause of death in the world. Forward and inverse problems of electrocardiography (ECG) are methods that provide detailed information about the electrical activity of the heart. Forward problem of electrocardiography is the estimation of body surface potentials from equivalent cardiac sources. Inverse problem of electrocardiography can be described as estimation of the electrical sources in the heart using the potential measurements obtain

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30

Poulikakos, Dimitrios. "Electrocardiography for risk stratification of sudden cardiac death in chronic kidney disease." Thesis, St George's, University of London, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.703279.

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Sudden cardiac death accounts for one fourth of deaths in prevalent dialysis patients yet risk stratification for targeted preventive treatment remains an unmet clinical need. This thesis belongs to the field of non-invasive electrophysiology and its goal is to investigate if electrocardiographic monitoring during dialysis can provide subject specific profiles of selected indices of repolarisation and cardiac autonomic modulation derived with computerised analysis of the surface electrocardiogram that would be suitable for risk stratification purposes for sudden cardiac death in dialysis patie

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31

Long, Meijing, and 龍梅菁. "Prevalence of electrocardiographic abnormalities and the relationship bewtween alcohol use and electrocardiographic-left ventricularhypertrophy in older Chinese people: theGuangzhou biobank cohort study." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45789642.

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32

Still, A. M. (Aino-Maija). "Prevalence and characteristics of ectopic atrial tachycardia and inappropriate sinus tachycardia." Doctoral thesis, University of Oulu, 2004. http://urn.fi/urn:isbn:9514273818.

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Abstract This research was designed to assess the prevalence, characteristics, natural course and autonomic regulation of ectopic atrial tachycardia (EAT) and inappropriate sinus tachycardia (IST) and the response of IST to adenosine. The prevalence of EAT, as estimated from the electrocardiograms (ECG) of males applying for a pilot's licence, was 0.34%. During a mean follow-up time of 8 years among 10 asymptomatic subjects and 7 years among 17 symptomatic patients, a majority of the subjects showed a reduction of the heart rate (HR), either with restoration of sinus rhythm (SR) (37%) or with

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33

Jim, Man-hong. "New electrocardiographic and angiographic observations in acute inferior myocardial infarction and their prognostic impacts." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/HKUTO/record/B39558423.

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34

邱文輝 and Man-fai Yau. "Automatic on-line classification of ECG morphology for ambulatory monitoring." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B31209038.

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35

Mason, Laura Laura. "Signal processing methods for non-invasive respiration monitoring." Thesis, University of Oxford, 2002. http://ora.ox.ac.uk/objects/uuid:68b60700-1cf5-4587-8896-4e18a70c5193.

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This thesis investigates the feasibility of using a set of non-invasive biomedical signals to monitor respiration. The signals of interest being the electrocardiogram (EGG), photoplethysmography (PPG) and impedance plethysmography (IP) signals. The work has two main aims; the first being to estimate breathing rates from the signals, the second being to detect apnoeas from the signals. The fusion of information from different signals is used throughout in developing algorithms that give more accurate respiratory information than that obtained using one signal alone. Respiratory waveforms are de

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36

di, Bernardo Diego. "Computer modelling of cardiac repolarisation for the analysis of the electrocardiogram." Thesis, University of Newcastle Upon Tyne, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364809.

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37

Lewis, Jonathan David. "The development of a clinical ambulatory body surface potential mapping recorder for the diagnosis of myocardial ischaemia." Thesis, University of Sussex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309442.

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38

Crihalmeanu, Simona Gabriela. "Representative ways to analyze and survey changes in long-term electrocardiographic recordings." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1623.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains viii, 195 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 77-81).

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39

Yau, Man-fai. "Automatic on-line classification of ECG morphology for ambulatory monitoring /." [Hong Kong] : University of Hong Kong, 1988. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12433962.

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40

Onal, Murat. "Evaulation Of Spatial And Spatio-temporal Regularization Approaches In Inverse Problem Of Electrocardiography." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12610045/index.pdf.

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Conventional electrocardiography (ECG) is an essential tool for investigating cardiac disorders such as arrhythmias or myocardial infarction. It consists of interpretation of potentials recorded at the body surface that occur due to the electrical activity of the heart. However, electrical signals originated at the heart suffer from attenuation and smoothing within the thorax, therefore ECG signal measured on the body surface lacks some important details. The goal of forward and inverse ECG problems is to recover these lost details by estimating the heart&amp<br>#8217<br>s electrical activity

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41

SULAS, ELEONORA. "Development of a Novel Dataset and Tools for Non-Invasive Fetal Electrocardiography Research." Doctoral thesis, Università degli Studi di Cagliari, 2020. http://hdl.handle.net/11584/284403.

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This PhD thesis presents the development of a novel open multi-modal dataset for advanced studies on fetal cardiological assessment, along with a set of signal processing tools for its exploitation. The Non-Invasive Fetal Electrocardiography (ECG) Analysis (NInFEA) dataset features multi-channel electrophysiological recordings characterized by high sampling frequency and digital resolution, maternal respiration signal, synchronized fetal trans-abdominal pulsed-wave Doppler (PWD) recordings and clinical annotations provided by expert clinicians at the time of the signal collection. To th

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42

Cheng, Pak-ho. "P wave characteristics and QRS duration in patients after Fontan-type procedures." Click to view the E-thesis via HKUTO, 2010. http://sunzi.lib.hku.hk/hkuto/record/B43781627.

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43

Hedberg, Pär. "Left ventricular systolic dysfunction in 75-year-old men and women : a community-based study of prevalence, screening and mitral annulus motion for diagnosis and prognostics /." Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5793.

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44

Jim, Man-hong, and 詹民康. "New electrocardiographic and angiographic observations in acute inferior myocardial infarction and their prognostic impacts." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39558423.

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45

Morales, Eduardo. "Spatio-temporal ECG analysis for localization of arrhythmias using precordial ECG leads and 128-lead system." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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46

Botelho, Roberto Vieira. "Valor preditivo da tele-eletrocardiografia no infarto agudo do miocárdio." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/5/5144/tde-29012009-134020/.

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O presente estudo procurou avaliar, prospectivamente, a segurança do sistema de tele-eletrocardiografia para a liberação de pacientes que se apresentem a postos de saúde com queixa de dor torácica. Avaliamos a incidência de infarto do miocárdio dessa população ao longo de seis meses. Como objetivo secundário, correlacionamos, retrospectivamente, a razão das probabilidades entre diferentes indicadores clínicos e eletrocardiográficos e a ocorrência do infarto do miocárdio. Entre junho e dezembro de 2006, 32444 pacientes foram atendidos em postos de saúde pública, carentes de cardiologistas e tiv

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47

Sarikaya, Sedat. "Combination Of Conventional Regularization Methods And Genetic Algorithms For Solving The Inverse Problem Of Electrocardiography." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/2/12611669/index.pdf.

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Distribution of electrical potentials over the surface of the heart, i.e., the epicardial potentials, is a valuable tool to understand whether there is a defect in the heart. However, it is not easy to detect these potentials non-invasively. Instead, body surface potentials, which occur as a result of the electrical activity of the heart, are measured to diagnose heart defects. However the source electrical signals loose some critical details because of the attenuation and smoothing they encounter due to body tissues such as lungs, fat, etc. Direct measurement of these epicardial potentials re

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48

Pan, Xiang. "Deep Transfer Learning Applied to Time-series Classification for Predicting Heart Failure Worsening Using Electrocardiography." Digital WPI, 2020. https://digitalcommons.wpi.edu/etd-dissertations/615.

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Computational ECG (electrocardiogram) analysis enables accurate and faster diagnosis and early prediction of heart failure related symptoms (heart failure worsening). Machine learning, particularly deep learning, has been applied for ECG data successfully. The previous applications, however, either mainly focused on classifying occurrent, known patterns of on-going heart failure or heart failure related diseases such arrhythmia, which have undesirable predictability beforehand, or emphasizing on data from pre-processed public database data. In this dissertation, we developed an approach, howev

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49

Arnold, Michael Leonard. "Correlation Of Lead I With Standard 12-Lead Electrocardiography: A Potential Tool For Cardiac Screening." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/347311.

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Background: Heart disease remains the leading cause of morbidity and mortality worldwide. Typical symptoms of heart disease are lacking in nearly one-third of patients with acute myocardial infarction (AMI). Simplified ECG assessment via lead I by various handheld and smartphone-based electrocardiogram (ECG) devices may be used for rapid screening without the traditional delays, privacy concerns, or costs of 12-lead ECG recording in patients who are asymptomatic or have atypical symptoms. The purpose of this DNP project was to compare ECG data from lead I to the standard 12-lead ECG to determi

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50

BALDAZZI, GIULIA. "Advanced signal processing and machine learning tools for non-invasive foetal electrocardiography and intracardiac electrophysiology." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1082764.

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In the last decades, bioengineering research promoted the improvement in human health and wellbeing through the development, optimization and evaluation of innovative technologies and medical devices for both diagnosis and therapy. In this context, the exploitation of biomedical technology advances plays a key role in the study and treatment of heart disorders. This PhD thesis focuses on two main application areas: on one hand, foetal cardiac physiology and electrocardiography and, on the other, intracardiac electrophysiology, substrate mapping and radiofrequency ablation. There, it aims at p

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