Applications of artificial neural networks for ECG signal detection and classification.

abstract：AIM:LBBB in heart failure patients has prognostic significance. Subtypes of LBBB (concordant and discordant) have not been considered when considering management. The aim of this study is to explore the clinical difference between the two subtypes. METHODS:216 patients with LBBB were included and categorized into conc...

journal_title：Journal of electrocardiology

authors： Khalil J,Bernard AS,Maurice K,Zaheer Y,Marwan R,Abdallah R,Samir A,Hadi S

更新日期：2016-01-01 00:00:00

abstract：:Voltage-sensitive dyes and high resolution optical mapping were used to analyze the characteristics of spiral waves of excitation in isolated ventricular myocardium. In addition, analytical techniques, which have been previously used in the study of the characteristics of spiral waves in chemical reactions, were appli...

journal_title：Journal of electrocardiology

authors： Davidenko JM,Pertsov AM,Salomonsz R,Baxter WP,Jalife J

更新日期：1992-01-01 00:00:00

abstract：BACKGROUND AND PURPOSE:Descriptions of the significance of ST segment or QRS abnormalities in myocarditis are limited because documentation of the diagnosis has previously required myocardial biopsy. Late gadolinium enhancement (LGE) and T2 weighted imaging in the midventricular wall on cardiac magnetic resonance imagi...

journal_title：Journal of electrocardiology

authors： Jhamnani S,Fuisz A,Lindsay J

更新日期：2014-11-01 00:00:00

abstract：:Sources of error in averaging for late ventricular potentials include variations in the magnitude and timing of late potentials as well as variability in the temporal alignment of successive cardiac cycles during averaging. Since these errors can both attenuate high frequency signals and add artifactual components to ...

journal_title：Journal of electrocardiology

authors： Craelius W,Restivo M,el-Sherif N

更新日期：1987-10-01 00:00:00

abstract：:In a patient with the sick sinus syndrome and near syncope a prolonged sinus pause was documented and reproduced thereafter during sustained deep inspiration. Administration of intravenous atropine abolished this phenomenon, most probably indicating a hyperresponsiveness of the sinus node and AV junction to a vagotoni...

journal_title：Journal of electrocardiology

authors： Strasberg B,Sclarovsky S,Arditti A,Lewin RF,Agmon J

更新日期：1986-01-01 00:00:00

abstract：:The de Winter electrocardiogram (ECG) pattern may signify proximal left anterior descending artery (LAD) occlusion and was suggested to be managed as ST-segment elevation myocardial infarction (STEMI) equivalent for urgent angiography and reperfusion therapy. However, cardiac catheter laboratory is not readily or time...

journal_title：Journal of electrocardiology

authors： Xu W,Xu L,Peng J,Huang S

更新日期：2019-01-01 00:00:00

abstract：:The authors investigated 244 consecutive patients with suspected coronary artery disease by coronary angiography and quantitative left ventriculography to compare the Minnesota Q/QS code (MC) with clinical electrocardiographic (ECG) interpretation. Patients who were suspected to have wall motion abnormalities for reas...

journal_title：Journal of electrocardiology

authors： Heinbuch S,Koenig W,Gehring J

更新日期：1993-04-01 00:00:00

abstract：:RBBB tachycardia with NW axis is considered to be VT unless proved otherwise. However underlying conduction system disease can produce electrocardiographic patterns suggestive of bundle branch block with extreme left axis which can cause difficulty in differentiating VT from SVT as in this case. ...

journal_title：Journal of electrocardiology

authors： Nair KKM,Namboodiri N,Abhilash SP,Valaparambil A

更新日期：2018-01-01 00:00:00

abstract：:This study describes a method for improving the day-to-day and minute-to-minute repeatability of the deterministic computer-assisted diagnosis of left ventricular hypertrophy. Conventional upper limits of normal for many age-dependent electrocardiographic parameters have been replaced by continuous equations, thereby,...

journal_title：Journal of electrocardiology

authors： McLaughlin SC,Aitchison TC,Macfarlane PW

更新日期：1993-01-01 00:00:00

abstract：:Previous studies indicate that the predictive value of atrial fibrillatory rate in patients undergoing cardioversion of atrial fibrillation (AF) of long duration is limited. The present study investigates signal entropy in this setting. Standard 12-lead electrocardiograms (ECGs) were recorded from 66 consecutive patie...

journal_title：Journal of electrocardiology

authors： Petersson R,Sandberg F,Platonov PG,Holmqvist F

更新日期：2011-03-01 00:00:00

abstract：:Have we a challenge of credibility in the invasive treatment of atrial fibrillation (AFIB)? The incidence of AFIB in the European Union (EU) is about 600,000 cases per year, while only 100,000 get an invasive treatment with a failure rate of close to 40%. Those that remain in AFIB need two times more hospitalizations ...

journal_title：Journal of electrocardiology

authors： Azpilicueta J,Chmelevsky M,Potyagaylo D

更新日期：2018-01-01 00:00:00

abstract：:This study is a descriptive report of the occurrence of ventricular arrhythmias in a large, prospectively designed follow-up study of postcoronary patients. Six-hour Holter recordings were obtained on 954 postinfarction patients prior to hospital discharge and at 4 (n = 837), 8 (n = 762), 12 (n = 713), and 24 (n = 487...

journal_title：Journal of electrocardiology

authors： DeCamilla JJ,Davis HT,Moss AJ

更新日期：1980-04-01 00:00:00

abstract：:Serial electrocardiograms (ECGs) of 49 patients receiving adriamycin were analyzed for the development of persistent changes. The ECG changes were compared with those of a control group of 20 patients receiving other chemotherapeutic drugs, which were comparable to the additional chemotherapy received by the adriamyci...

journal_title：Journal of electrocardiology

authors： Weaver SK,Fulkerson PK,Lewis RP,Leier CV

更新日期：1978-07-01 00:00:00

abstract：:Exercise testing was evaluated in 51 patients with critical left coronary artery disease (LCA) documented by coronary arteriography within two weeks of their bicycle ergometer (26 patients) or treadmill (25 patients) electrocardiographic study. Adequate tests, as defined by the patient having reached 85% of predicted ...

journal_title：Journal of electrocardiology

authors： Timmis GC,Westveer DC,Gordon S,Ramos RG,Gangadharan V

更新日期：1979-07-01 00:00:00

abstract：:The case of a patient with complete atrioventricular block with capability of rapid ventriculoatrial conduction with unusual behavior is presented. Potential mechanisms are discussed. ...

journal_title：Journal of electrocardiology

authors： Arias MA,Jiménez-López J,Pachón M,Jerez-Valero M,Puchol A,Rodríguez-Padial L

更新日期：2012-07-01 00:00:00

abstract：:Clinically based studies have indicated that patients who have suffered myocardial infarction (MI) exhibit lower heart rate variability (HRV). Such associations have not been reported at the population level. To investigate whether MI is related to lower HRV in the general population, the authors examined a stratified...

journal_title：Journal of electrocardiology

authors： Liao D,Evans GW,Chambless LE,Barnes RW,Sorlie P,Simpson RJ Jr,Heiss G

更新日期：1996-07-01 00:00:00

abstract：:Reliable cardiovascular (CV) risk assessment by a noninvasive tool would be of great value for CV event prevention. The present study consists of 187 coronary artery disease patients with 8 years of follow-up. Eight vectorcardiographic parameters characterizing different aspects of ventricular repolarization were anal...

journal_title：Journal of electrocardiology

authors： Rubulis A,Bergfeldt L,Rydén L,Jensen J

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND:We assessed the specificity of wide QRS complex tachycardia (WCT) differentiating algorithms in patients with preexistent left bundle branch block (LBBB) and heart failure. METHODS:Three hundred fourteen patients with resynchronization devices were retrospectively screened. electrocardiograms with supravent...

journal_title：Journal of electrocardiology

authors： Jastrzebski M,Kukla P,Czarnecka D,Kawecka-Jaszcz K

更新日期：2012-05-01 00:00:00

abstract：:We studied the use of cardiac magnetic field mapping to detect patients with CAD without subjecting them to stress. Fifty-nine healthy control subjects and 101 patients with CAD without previous MI were included. The optimal positions for detecting CAD were located in the left superior parasternal and in the inferior ...

journal_title：Journal of electrocardiology

authors： Gapelyuk A,Wessel N,Fischer R,Zacharzowsky U,Koch L,Selbig D,Schütt H,Sawitzki B,Luft FC,Dietz R,Schirdewan A

更新日期：2007-09-01 00:00:00

abstract：:We evaluate in this paper different strategies for the construction of a statistical shape model (SSM) of the left ventricle (LV) to be used for segmentation in cardiac magnetic resonance (CMR) images. From a large database of LV surfaces obtained throughout the cardiac cycle from 3D echocardiographic (3DE) LV images,...

journal_title：Journal of electrocardiology

authors： Piazzese C,Carminati MC,Colombo A,Krause R,Potse M,Auricchio A,Weinert L,Tamborini G,Pepi M,Lang RM,Caiani EG

更新日期：2016-05-01 00:00:00

abstract：BACKGROUND:Electrocardiogram (ECG) screening in athletes enhances the detection of conditions associated with sudden cardiac death (SCD), but concerns remain for false positive results when conducted outside of specialized centers. This study compared ECG interpretation in college athletes between local physicians and ...

journal_title：Journal of electrocardiology

authors： Petek BJ,Drezner JA,Prutkin JM,Owens DS,Tran T,Harmon KG

更新日期：2020-01-01 00:00:00

abstract：:A common basis of orthogonal waveform functions was derived from 128 lead body surface potential maps of 405 subjects. Twelve such orthogonal functions or frames were adequate for reconstruction of original ECGs from the beginning of QRS to the end of T. A larger number of frames (18) was required when basis functions...

journal_title：Journal of electrocardiology

authors： Kornreich F,Rautaharju PM,Warren JW,Horacek BM,Dramaix M

更新日期：1985-10-01 00:00:00

abstract：:An interpolated premature ventricular contraction (PVC) may produce either complete block of the next sinus impulse or depression of A-V nodal conduction with a prolonged A-H interval. When a PVC results in partial depression of a A-V nodal conduction, the effect on subsequent premature atrial stimuli is unknown. The ...

journal_title：Journal of electrocardiology

authors： Bissett JK,Kane JJ,de Soyza N,McConnell J,Schmitt N

更新日期：1977-01-01 00:00:00

abstract：:His bundle electrograms of 40 patients developing Wenckebach block during atrial pacing and four with spontaneous Wenckebach block above the His were reviewed to determine the frequency of classical Wenckebach periodicity. Thirty patients had 143 Wenckebach cycles that were suitable for analysis. Cycles were evaluated...

journal_title：Journal of electrocardiology

authors： Friedman HS,Gomes JA,Haft JI

更新日期：1975-01-01 00:00:00

abstract：BACKGROUND:Isolation of infract related artery and timely revascularisation remains vital in the setting of primary percutaneous coronary intervention. OBJECTIVES:To analyse the predictive value of ST-T changes in lead aVR in inferior myocardial infarction in terms of prognosis and timely risk stratification. METHODS...

journal_title：Journal of electrocardiology

authors： Gaballa A,Farid W,Al-Kersh A,Rajan R,Al Jarallah M

更新日期：2019-01-01 00:00:00

abstract：BACKGROUND:Possible similarities or differences in the ST- and PR-segment deviations in the electrocardiogram of takotsubo cardiomyopathy (TTC) and acute pericarditis (AP) are not well defined. METHODS:We compared different parameters of the admission electrocardiogram in eight patients with TTC and eight patients wit...

journal_title：Journal of electrocardiology

authors： Zhong-qun Z,Chong-quan W,Sclarovsky S,Nikus KC,Chao-rong H,Shan M

更新日期：2013-03-01 00:00:00

abstract：:VPC morphology was studied in the surface 12-leads ECGs (resting) in one hundred and thirty-six patients over a none-month period (January-September, 1978). Seventy four (54%) of these had coronary artery disease proven by cardiac catheterization (61) or by evidence of acute transmural myocardial infarction (13) diagn...

journal_title：Journal of electrocardiology

authors： Sharma PR,Chung EK

更新日期：1980-10-01 00:00:00

abstract：:No prior studies have evaluated the relationship between the site of right ventricular stimulation, the site of prior infarction, and the inducibility of ventricular tachycardia (VT). This study was performed to determine if the location of pathologic Q waves influences the inducibility of VT at various right ventricu...

journal_title：Journal of electrocardiology

authors： Harvey M,Goyal R,Knight BP,Man KC,Strickberger SA,Morady F

更新日期：1998-10-01 00:00:00

abstract：:Unexplained sudden deaths following use of pentavalent antimonial drugs have been described, presumably owing to ventricular arrhythmias. A patient is reported with QT interval prolongation and syncopal episodes related to torsade de pointes following treatment of visceral leishmaniasis with meglumine antimoniate. Thi...

journal_title：Journal of electrocardiology

authors： Ortega-Carnicer J,Alcázar R,De la Torre M,Benezet J

更新日期：1997-04-01 00:00:00

abstract：:Eight sets of electrocardiographic (ECG) criteria for the localization of accessory conduction pathway (ACP) were evaluated on 182 patients with a single ACP. The Rosenbaum criteria identified 78.6% of the left-sided and 94.0% of the right-sided ACPs. Four of the other seven sets of criteria demonstrated a sensitivity...

journal_title：Journal of electrocardiology

authors： Yuan S,Iwa T,Tsubota M,Bando H

更新日期：1992-07-01 00:00:00