1. Radiofrequency ablation lesion assessment using optical coherence tomography – a proof‐of‐concept study

    Radiofrequency ablation lesion assessment using optical coherence tomography – a proof‐of‐concept study

    Background Radiofrequency catheter ablation (RFA) is an effective treatment for atrial fibrillation. However, ablation lesions are usually only assessed functionally. The immediate effect of RFA on the tissue is not directly visualized. Optical coherence tomography (OCT) is an imaging technique that uses light to capture high‐resolution images with histology‐like quality. Therefore, it might be used for high‐precision imaging of ablation lesions. Methods and Results Radiofrequency ablation lesions ( n = 25) were produced on the freshly excised left and right ventricular porcine endocardium. A Thermocool® ST SF NAV ablation catheter (Biosense Webster Inc.) and an EP‐Shuttle® ablation generator ...

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