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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/199623
Validation and optimization of omnipolar technology in ventricular ablation procedures
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This project aims to improve the effectiveness of ventricular tachycardia (VT) ablation procedures
by accurately mapping the reentrant channels responsible for the arrhythmia. The study compares
different mapping techniques, including bipolar, orthogonal, and omnipolar signals, using the HD
Grid catheter and the EnSite X system. Electro-Anatomical Maps (EAMs) created through these
techniques are evaluated for their accuracy in identifying channels by comparing them with Cardiac
Magnetic Resonance (CMR) maps. The project's findings demonstrate that the omnipolar map,
optimized with specific thresholds, exhibits higher correlation with the CMR map, offering reliable
and accurate information about the cardiac tissue. Moreover, the comparisons are done also
between layers of the ventricle’s heart, the layer 50 (which is an average of the pixels of layers 10-
50) is identified as the most informative layer, and expanded maximum thresholds allow for a
comprehensive understanding of ventricular tissue. The results validate the superiority of the
omnipolar technology and emphasize the need for further research and collaboration to advance
the field of VT ablation procedures.
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Treballs Finals de Grau d'Enginyeria Biomèdica. Facultat de Medicina i Ciències de la Salut. Universitat de Barcelona. Curs: 2022-2023. Tutora/Directora: Garre, Paz, Vázquez, Sara
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SARRIAS RAMONEDA, Lali. Validation and optimization of omnipolar technology in ventricular ablation procedures. [consulta: 24 de gener de 2026]. [Disponible a: https://hdl.handle.net/2445/199623]