Aim of the presented experimental and theoretical model was to characterize the power deposition process in cardiac catheter ablation. A dedicated set-up, based on a transparent temperature-sensitive gel-phantom was developed. A liquid crystal film was used to map the temperature distribution during RF deposition. An infrared acquiring system and a post-processing image software were used to define the heating zone and to quantify the device specific heating fingerprint. Experimental results were compared to a thermal conduction model with spherical symmetry, showing good agreement for ablation time 100<t<600s. Differences between model and experimental results were explained by deviation of the real heating pattern from spherical geometry.
Radiofrequency Ablation on Heart-equivalent Phantom. Functionality Testing of Percutaneous Single-use Catheter
Tessarolo, Francesco;Nollo, Giandomenico
2005-01-01
Abstract
Aim of the presented experimental and theoretical model was to characterize the power deposition process in cardiac catheter ablation. A dedicated set-up, based on a transparent temperature-sensitive gel-phantom was developed. A liquid crystal film was used to map the temperature distribution during RF deposition. An infrared acquiring system and a post-processing image software were used to define the heating zone and to quantify the device specific heating fingerprint. Experimental results were compared to a thermal conduction model with spherical symmetry, showing good agreement for ablation time 100File | Dimensione | Formato | |
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