CTICasesLeft Atrial Calcification post Catheter Ablation
Imaging findings
CT chest shows focal calcifications along the left atrial wall near the pulmonary vein ostia and the Coumadin ridge, years after radiofrequency (RF) catheter ablation for atrial fibrillation.
Key takeaways
Focal left atrial calcification is a late, benign iatrogenic complication of radiofrequency catheter ablation. Thermal tissue injury and subsequent scarring promote dystrophic calcification along the ablation lines, typically near the pulmonary veins, which should not be confused with other atrial masses or thrombus.
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