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A: Physical situation modeled with a proactive cooling device located in the esophageal lumen. B: Model geometry including RF catheter, tissues near the ablation site, and proactive cooling device located in the esophageal lumen. The evaluation line (black line) for postprocessing is shown across the ablated tissues, from the tip of the RF catheter to the edge of the active cooling device. Reproduced from Montoya, et al.74 3D = 3-dimensional; RF = radiofrequency.
