Article list

Autocorrelation Maps for Optimal Cardiac Resynchronisation Therapy Setting

Investigators: Anna Přibilová, Jana Švehlíková, Ján Zelinka, Milan Tyšler The study proposes parameters potentially suitable for optimal ventricular stimulation settings in cardiac resynchronization therapy. The parameters are determined from autocorrelation maps (ACM) calculated from surface potential maps of 17 patients, 14 of whom have left bundle branch block and three have right bundle branch block….

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Wearable smart patch for monitoring vital functions in life support system

Investigators: Milan Tyšler, Richard Bagín, Daniel Gogola, Fedor Lehocki, Beáta Ondrušová An innovative system for monitoring the vital functions of injured persons during mass disasters was developed. The system features smart patches designed to record electrocardiograms, photoplethysmograms, respiratory movements, and body temperature from the chest of injured persons. The patches autonomously evaluate heart rate and…

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Comparison of dipole-based and potential-based ECGI methods for premature ventricular contraction beat localization with clinical data

Investigators: Švehlíková J., Ondrušová B., Zelinka J., Tyšler M., Hlivák P., Rasoolzadeh N., Serinagaoglu-Dogrusoz Y.S., The aim of the joint project of the IOM SAS and Middle East University in Ankara was to apply the inverse electrocardiography methods used at each site to the same data from multi-lead chest measurements. We applied the inverse methods…

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Two-steps algorithm for computing the inverse solution of electrocardiography

Investigators: Beáta Ondrušová, Peter Tiňo, Jana Švehlíková This study addresses the non-invasive localization of cardiac abnormalities, specifically premature ventricular contractions (PVCs), through a newly proposed two-stage inversion solution for a dipole cardiac source. One of the inputs for solving the inversion problem is the surface potentials measured using a large number (128) of electrodes placed…

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The Importance of ECG Offset Correction for Noninvasive Premature Ventricular Contraction Origin Localization from Clinical Data

Investigators: Jana Švehlíková, Anna Přibilová, Ján Zelinka, Beáta Ondrušová, Katarína Kromková, Peter Hlivák, Robert Hatala, Milan Tyšler The input data for localization of the source of premature ventricular activity (PKA) were averaged ECG signals obtained from a 5-20 minute recording of multi-lead ECG measured in 14 patients diagnosed with PKA. During its standard processing, the…

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Analysis of Significance of Multi-Lead ECG Electrodes and Their Influence on Accuracy of Inverse Solution

Investigators: Beáta Ondrušová, Jana Švehlíková, Ján Zelinka, Milan Tyšler, Peter Tiňo   In the study, we proposed a methodology for determining the significance of signals from individual electrodes of multichannel ECG measurement for solving the inverse problem to locate the source of the ventricular extrasystole. This method is based on the singular decomposition of the…

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