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Št. zadetkov: 6
Numerical modeling of temperature distribution during electroporation based treatments in fluid flow conditions
Peter Lombergar, Bor Kos
Doktorska disertacija
Oznake: Electroporation;Pulsed Electric Field (PEF) treatment;Pulsed Field Ablation (PFA);Numerical modeling;Cardiac ablation;Ohmic heating;Lethal electric field threshold;Thermal damage;
Electroporation is a biophysical phenomenon in which high-voltage electric pulses transiently increase cell membrane permeability. Depending on the electric field intensity and exposure duration, this process can result in either reversible or irreversible cell damage, giving it broad applications i ...
Leto: 2025 Vir: Fakulteta za elektrotehniko (UL FE)
Razvoj naprednih numeričnih modelov pretočnih komor za obdelavo s pulzirajočim električnim poljem
Peter Lombergar, Damijan Miklavčič, Samo Mahnič-Kalamiza
Magistrsko delo
Oznake: obdelava s pulzirajočim električnim poljem;pretočna komora;numerično modeliranje;elektroporacija;
Obdelava s pulzirajočim električnim poljem (angl. PEF treatment) je obetavna tehnologija na področju prehranske industrije, biotehnologije in okoljevarstva, ki temelji na dovajanju kratkih, visokonapetostnih pulzov. Ena glavnih komponent sistema za obdelavo s pulzirajočimi polji je pretočna komora, ...
Leto: 2020 Vir: Fakulteta za elektrotehniko (UL FE)
Time-dependent model of temperature distribution in continuous flow pulsed electric field treatment chambers
Peter Lombergar, Karel Flisar, Damijan Miklavčič, Samo Mahnič-Kalamiza
Izvirni znanstveni članek
Oznake: pulzirajoča električna polja;pretočna komora;neprekinjen pretok;numerično modeliranje;elektroporacija;ohmsko segrevanje;pulsed electric fields;treatment chameber;continuous flow;numerical modelling;electroporation;ohmic heating;
A key component of a continuous flow pulsed electric field (PEF) system is the treatment chamber, where the product is exposed to electric pulses. Determination of the temperature distribution in the chamber during PEF treatment is important since high local increases in temperatures can affect the ...
Leto: 2024 Vir: Fakulteta za elektrotehniko (UL FE)
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)
Biophysics and electrophysiology of pulsed field ablation in normal and infarcted porcine cardiac ventricular tissue
Damijan Miklavčič, Atul Verma, Philippa R. Krahn, Jernej Štublar, Bor Kos, Terenz Escartin, Peter Lombergar, Nicolas Coulombe, Maria Terricabras Casas, Tomaž Jarm, Matej Kranjc
Izvirni znanstveni članek
Oznake: srčne aritmije;elektroporacija;katetrska ablacija;ventricular arrhythmias;electroporation;pulsed filed ablation;
Pulsed Field Ablation (PFA) is a new ablation method being rapidly adopted for treatment of atrial fibrillation, which shows advantages in safety and efficiency over radiofrequency and cryo-ablation. In this study, we used an in vivo swine model (10 healthy and 5 with chronic myocardial infarct) for ...
Leto: 2024 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)
Št. zadetkov: 6
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