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Št. zadetkov: 4
Elucidating the mechanisms of microbubble formation in intracardiac pulsed field ablation
Samo Mahnič-Kalamiza, Damijan Miklavčič, Peter Lombergar, Blaž Mikuž, Lars M. Mattison, Daniel C. Sigg, Bor Kos
Izvirni znanstveni članek
Oznake: ablacija s pulznim električnim poljem;sproščanje plina;elektrokemija;Joulovo segrevanje;fazni prehod vode;pulsed field ablation;gas release;electrochemistry;Joule heating;water phase transition;
Delivery of electrical energy for sensing or therapeutic purposes often involves electrochemical phenomena at the electrode-electrolyte solution interface. Release of gaseous bubbles that accompanies delivery of pulsed electric fields to tissues in applications such as electrochemotherapy of tumours ...
Leto: 2024 Vir: Institut Jožef Stefan (IJS)
Intracardiac electrogram analysis may allow for prediction of lesion transmurality after pulsed field ablation of atria in a porcine model
Jernej Štublar, Tomaž Jarm, Lars M. Mattison, Bryan D. Martin, Megan M. Schmidt, Matevž Jan, Atul Verma, Paul A. Iaizzo, Daniel C. Sigg, Damijan Miklavčič
Izvirni znanstveni članek
Oznake: srčna ablacija z ireverzibilno elektroporacijo;srčni preddvor v prašičjem modelu;znotrajsrčni elektrogrami;bipolarni in unipolarni iEGM;frekvenčna analiza;diskretna valčna transformacija;tok poškodbe;transmularnost lezije;pulsed field ablation;atria porcine model;intracardiac electrograms;bipolar vs unipolar iEGM;frequency analysis;discrete wavelet transform;current of injury;lesion transmurality;
Background Pulsed field ablation (PFA) is a novel cardiac ablation modality with an increasing clinical acceptance in treatment of atrial fibrillation due to its clinical efficacy and excellent safety profile. However, intraprocedural guidance for PFA to ensure durable pulmonary vein isolation (PVI) ...
Leto: 2025 Vir: Fakulteta za elektrotehniko (UL FE)
Modified unipolar return pulsed field ablation in ventricular myocardium
Maria Terricabras Casas, Peter Lombergar, Terenz Escartin, Bor Kos, Philippa R. Krahn, Jennifer Barry, Graham Wright, Tomaž Jarm, Jernej Štublar, Matej Kranjc, Nicolas Coulombe, Lars M. Mattison, Daniel C. Sigg, Damijan Miklavčič, Atul Verma
Izvirni znanstveni članek
Oznake: atrijska ablacija;katetrska ablacija;srčni ventrikli;pljučne vene;ventrikularna tahikardija;atrial fibrillation;catheter ablation;heart ventricles;pulmonary veins;tachycardia ventricular;
BACKGROUND: Various pulsed field ablation (PFA) parameters have been proposed to improve lesion depth. This study evaluated a modified unipolar return PFA system to create deep lesions in healthy and infarcted ventricular myocardia. METHODS: Numerical modeling was used to compare a modified unipolar ...
Leto: 2025 Vir: Repozitorij Univerze v Ljubljani (RUL)
Expectation-Maximization for Sparse and Non-Negative PCA
Christian David Sigg
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Oznake: computer science;machine learning
We study the problem of finding the dominant eigenvector of the sample covariance matrix, under additional constraints on its elements: a cardinality constraint limits the number of non-zero elements, and non-negativity forces the elements to have equal sign. This problem is known as sparse and non- ...
Leto: 2008 Vir: videolectures.net
Št. zadetkov: 4
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