Magnetic resonance imaging pre and post pulmonary vein isolation for atrial fibrillation: diagnostic accuracy to detect and characterize ablation lesions by Jones Daniel A, Hunter Ross J, Boubertakh Redha, Malcolme-Lawes Louisa, Kanagaratnam Prapa, Peters Nicholas S, Juli Christoph, Baker Victoria, Earley Mark, Sporton Simon, Davies Ceri, Westwood Mark, Schilling Richard J, Petersen Steffen E