Clinical Research Directory

Inclusion Criteria: For all groups of AF patients: * Over 18 years of age * Participation to the MAESTRIA-AFNET 10 study * Able to undergo an injected MRI examination * Able to give consent * Affiliated to French social security system Specific inclusion criteria of AF patients (same as MAESTRIA-AFNET 10) Group 1: patients with paroxysmal AF (no AF during exam) clinically defined as AF episodes less than one week Group 2: patients with persistent AF, clinically defined as AF episodes longer than one week Group 3: patients with permanent AF, with no documented sinus rhythm or possibility to restore sinus rhythm by any means For healthy volunteers (Group 4): * Over 18 years of age (including 30 subjects \< 60 years) * Able to undergo an MRI examination * Able to give consent * Affiliated to French social security system Exclusion Criteria: For all groups * Deprived of liberty or under legal protection (under guardianship or curatorship) * Kidney disease with GFR \<30 mL / min (because of the risks linked to the injection of DOTAREM ™ and iodine) * Pregnant woman, breastfeeding, of childbearing age in the absence of effective contraception * MRI contraindication (claustrophobia, patients with metallic foreign bodies) * Participation to another interventional clinical trial (Jardé 1) For patients * Patients with a history of renal disease (renal transplant, single kidney, renal cancer) * Patients who have received a dose of contrast in the last 24 hours * Patients who had a previous allergic or anaphylactic reaction to gadolinium For volunteers * Subjects with known cardiovascular pathology or under cardiovascular treatment * Subjects with cardiovascular history * Subjects with cardiac rhythm or conduction disorders