Incidental patent foramen ovale detected by 64-detector row CT before radiofrequency ablation therapy

摘要

This patient attended for pre-radio frequency ablation planning for drug refractory atrial fibrillation. The only abnormality demonstrated by transoeso-phageal echocardiography was a moderately dilated right atrium (RA). In our institution, 64-detector row computed tomography (CT) is now used as part of the pre-radio frequency ablation procedure. CT confirmed the transoesophageal echocardiography findings-normal pulmonary venous anatomy and a previously undiagnosed small patent foramen ovale (PFO).