One More Magnetic Resonance Imaging

Subjects in this study get a Delayed Enhanced Cardiac Magnetic Resonance Imaging 2-6 weeks after they undergo cryoablation for atrial fibrillation. This MRI is compared to the pre-procedure cardiac MRI to determine if it possible to visualize the cryoablation lesions.

All subjects in this study undergo a cryoballoon ablation procedure to achieve pulmonary vein isolation for the purposes of treatment of atrial fibrillation