###Human: Would a cardiologist find out where catheter ablation was done without seeing the report? ###Assistant: Hello. I understand your concern and would explain that a cardiac MRI can reveal the site of fibrosis, which correlates with the ablated region, in the myocardial tissues. This way a cardiologist who examines the cardiac MRI even years after the procedure can localize exactly the region of ablation, without the ablation procedure report.