Exploració per autor "Voss, Andreas"
Ara es mostren els items 11-28 de 28
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Detrended fluctuation analysis of heart rate by means of symbolic series
(2010)
Text en actes de congrés
Accés obertDetrended fluctuation analysis (DFA) has been shown to be a useful tool for diagnosis of patients with cardiac diseases. The scaling exponents obtained with DFA are an indicator of power-law correlations in signal ... -
Diagnosis of ischemic heart disease with cardiogoniometry – Linear discriminant analysis versus support vector machines
(2008)
Text en actes de congrés
Accés restringit per política de l'editorialThe Ischemic Heart Disease (IHD) is characterized by an insufficient supply with blood of the myocardium usually caused by an artherosclerotic disease of the coronary arteries (coronary artery disease CAD). The IHD and its ... -
Effect of acute myocardial ischemia on different high-frequency bandwidths and temporal regions of the QRS
(IEEE, 2011)
Comunicació de congrés
Accés restringit per política de l'editorialThe purpose of this study was to describe the changes in high-frequency QRS (HF-QRS) components due to myocardial ischemia provoked by prolonged artery occlusion during percutaneous coronary interventions (PCI). ... -
Evaluation of acceleration and deceleration cardiac processes using phase-rectified signal averaging in healthy and idiopathic dilated cardiomyopathy subjects
(2015-02-01)
Article
Accés obertThe aim of the present study was to investigate the suitability of the Phase-Rectified Signal Averaging (PRSA) method for improved risk prediction in cardiac patients. Moreover, this technique, which separately evaluates ... -
Extraction of the respiration signal from the electrocardiogram
(2015)
Text en actes de congrés
Accés obert -
Heart rate variability characterized by refined multiscale entropy applied to cardiac death in ischemic cardiomyopathy patients
(2010)
Comunicació de congrés
Accés restringit per política de l'editorialIn this work, Refined Multiscale Entropy (RMSE) was applied to characterize risk of cardiac death in ischemic cardiomyopathy patients, analyzing heart rate variability (HRV) by means of RR series during daytime and ... -
Higuchi's fractal complexity of RR and QT interval series during transient myocardial ischemia
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialMyocardial ischemia may lead to significant changes in autonomic control of heart rate (HR) affecting its variability and alter beat-to-beat ventricular repolarization periods. We hypothesized that transient myocardial ... -
Influence of respiration in the very low frequency modulation of QRS slopes and heart rate variability in cardiomyopathy patients
(2013)
Comunicació de congrés
Accés restringit per política de l'editorialThis work investigates the very low frequency (VLF) modulation of QRS slopes and heart rate variability (HRV). Electrocardiogram (ECG) and respiratory flow signal were acquired from patients with dilated cardiomyopathy and ... -
Multivariate linear and nonlinear central-cardiorespiratory coupling pathways in healthy subjects
(2018)
Text en actes de congrés
Accés obert -
Neuronal desynchronization as marker of an impaired brain network
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Comunicació de congrés
Accés restringit per política de l'editorial -
Respiratory sinus arrhythmia quantified with linear and non-linear techniques to classify dilated and ischemic cardiomyopathy
(2018)
Text en actes de congrés
Accés obert -
Risk stratification in idiopathic dilated cardiomyopathy patients using cardiovascular coupling analysis
(2019-07-09)
Article
Accés obertCardiovascular diseases are one of the most common causes of death; however, the early detection of patients at high risk of sudden cardiac death (SCD) remains an issue. The aim of this study was to analyze the cardio-vascular ... -
Segmented Symbolic Dynamics for Risk Stratification in Patients with Ischemic Heart Failure, Cardiovascular Engineering and Technology
(Springer, 2010-12-30)
Article
Accés restringit per política de l'editorialChronic heart failure (CHF) is recognized as major and escalating public health problem. Approximately 69% of CHF patients suffer from cardiac death within 5 years after the initial diagnosis. Until now, no generally accepted ... -
SVM-based feature selection to optimize sensitivity–specificity balance applied to weaning
(Elsevier, 2013)
Article
Accés restringit per política de l'editorialClassification algorithms with unbalanced data sets tend to produce high predictive accuracy over the majority class, but poor predictive accuracy over the minority class. This problem is very common in biomedical data ... -
Symbolic dynamic analysis of relations between cardiac and breathing cycles in patients on weaning trials
(2010)
Article
Accés restringit per política de l'editorialTraditional time-domain techniques of data analysis are often not sufficient to characterize the complex dynamics of the cardiorespiratory interdependencies during the weaning trials. In this paper, the interactions between ... -
Symbolic dynamics of QT interval series in ischemic cardiomyopathy
(Computing in Cardiology, 2012)
Comunicació de congrés
Accés obertRepolarization dynamics may be of increasing interest in analyzing ECG-Holter for characterization of myocardial ischemic events related to cardiac death. The quantification of the dynamics of the beat-to-beat QT interval ... -
Symbolic dynamics to discriminate healthy and ischaemic dilated cardiomyopathy populations: An application to the variability of heart period and QT interval
(Royal Society, 2015-02-13)
Article
Accés obertMyocardial ischaemia is hypothesized to stimulate the cardiac sympathetic excitatory afferents and, therefore, the spontaneous changes of heart period (approximated as the RR interval), and the QT interval in ischaemic ... -
Symbolic dynamics to discriminate healthy and ischemic dilated cardiomyopathy
(2014-12-29)
Article
Accés obert
