Impact of electrode tip shape on catheter performance in cardiac radiofrequency ablation
The role of catheter tip shape on the safety and efficacy of radiofrequency (RF) ablation has been overlooked, although differences have been observed in clinical and research fields. The purpose of this study was to analyze the role of electrode tip shape in RF ablation using a computational model....
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:270756 |
| Acceso en línea: | https://ddd.uab.cat/record/270756 https://dx.doi.org/urn:doi:10.1016/j.hroo.2022.07.014 |
| Access Level: | acceso abierto |
| Palabra clave: | Cardiac ablation Computational modeling and simulation Electrode tip Lesion science Open irrigation Radiofrequency Steam pop |
| Sumario: | The role of catheter tip shape on the safety and efficacy of radiofrequency (RF) ablation has been overlooked, although differences have been observed in clinical and research fields. The purpose of this study was to analyze the role of electrode tip shape in RF ablation using a computational model. We simulated 108 RF ablations through a realistic 3-dimensional computational model considering 2 clinically used, open-irrigated catheters (spherical and cylindrical tip), varying contact force (CF), blood flow, and irrigation. Lesions are defined by the 50°C isotherm contour and evaluated by means of width, depth, depth at maximum width, and volume. Ablations are deemed as safe, critical (tissue temperature. |
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