P345Comparison of cryoballoon versus radiofrequency gaps detected by delayed-enhancement cardiac magnetic resonance after ablation of paroxysmal atrial fibrillation: a case-control study. (20th June 2017) - Alarcon, F.; Cabanelas, N.; Izquierdo, M.; Benito, E.; Chipa, F.; Prat, S.; Pereda, C.; Figueras, R.; Berruezo, A.; Mont, L.