Clinical Usefulness of Virtual Ablation Guided Catheter Ablation of Atrial Fibrillation: Virtual Rotor Mapping and Catheter Ablation

Inclusion Criteria: * AF patient age 19\~80 * Diagnosis of AF patients who performed catheter ablation of atrial fibrillation due to uncontrolled pulse rate by anti-arrhythmic drug therapy. Exclusion Criteria: * AF patients who have severe heart deformations or vascular disease. * The patient who have renal disease of eGFR\<30mL/min * The patients who had been performed catheter ablation of atrial ablation and MAZE. * The patients who missed out to recording of 3D CT, echo and electrocardiography. * the patient have experienced major hemorrhagic complication * The patient have experienced ischemic cerebral infarction more 2 times * The patient who have risk of ischemic cerebral infarction (CHA2DS2-VASc Score \>5)