Listar Productos de investigación por autor "Kotas, Marian"

Mostrando ítems 1-8 de 8

    • A novel approach for QRS complex detection in patients with atrial arrhythmia 

      Giraldo-Guzmán J.; Ruiz, Elkin; Magre Colorado, Luz Alejandra; Bautista Lasprilla, Gloria Isabel; Kotas, Marian (Cartagena de Indias, 2020-11-03)
      Atrial fibrillation (AF) is the most common cardiac arrhythmia in the world which shows rising prevalence leading to increased comorbidities, such as, Ischemic heart disease and Stroke that the main cause of deaths in the ...

    • Application of spatio-temporal filtering for atrial activity waveforms enhancement 

      Giraldo-Guzmán J.; Kotas, Marian; Piela M.; Castells F.; Łęski J.M.; Contreras Ortiz, Sonia Helena (Association for Computing Machinery, 2019)
      In this paper, we propose to apply spatio-temporal filtering to atrial activity enhancement, prior to the detection of possible atrial arrhythmias. During normal sinus rhythm, the atrial activity is well synchronized with ...

    • Automated Atrial Fibrillation Detection by ECG Signal Processing: A Review 

      Giraldo-Guzmán, Jader; Contreras-Ortiz, Sonia H.; Kotas, Marian; Castells, Francisco; Moroń, Tomasz (Cartagena de Indias, 2021)
      Cardiovascular diseases are the main cause of death in the world, according to the World Health Organization. Among them, ischemic heart disease is at the top, followed by a stroke. Several studies have revealed that atrial ...

    • Estimation of PQ distance dispersion for atrial fibrillation detection 

      Giraldo-Guzmán J.; Kotas, Marian; Castells, Francisco; Contreras Ortiz, Sonia Helena; Urina-Triana, Miguel (Cartagena de Indias, 2021-05-03)
      Background and objective: Atrial fibrillation (AF) is the most common cardiac arrhythmia in the world. It is associated with significantly increased morbidity and mortality. Diagnosis of the disease can be based on the ...

    • Fetal ECG extraction using independent component analysis by Jade approach 

      Giraldo-Guzmán J.; Contreras Ortiz, Sonia Helena; Lasprilla G.I.B.; Kotas, Marian (SPIE, 2017)
      Fetal ECG monitoring is a useful method to assess the fetus health and detect abnormal conditions. In this paper we propose an approach to extract fetal ECG from abdomen and chest signals using independent component analysis ...

    • Hierarchical agglomerative clustering of time-warped series 

      Kotas, Marian; Leski J.; Moroń T.; Guzmán J.G. (Springer Verlag, 2018)
      We have developed a procedure for hierarchical agglomerative clustering of time series data. To measure the dissimilarity between these data, we use classically the Euclidean distance or we apply the costs of the series ...

    • Spatio Temporal Filtering of Multi-lead ECG Signals for Atrial Arrhythmia Classification 

      Giraldo-Guzman, Jader; Contreras-Ortiz, Sonia H.; Castells, Francisco; Kotas, Marian (Cartagena de Indias, 2021-10)
      Atrial fibrillation (AF) is the most common cardiac arrhythmia and increases the risk of suffering stroke. Some people with AF do not have symptoms, so, its diagnosis can be difficult, especially in early stages of the ...

    • Spatio-Temporal Filtering for Evoked Potentials Detection 

      Piela M.; Kotas, Marian; Ortiz S.H.C. (Springer, 2020)
      We propose the new application of the spatio-temporal filtering (STF) method, which is a detection of visual evoked potentials applied to brain-computer interfaces (BCI). STF aims in creating a new, enhanced channel basing ...

      Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.