Feasibility, Safety and Diagnostic Input of Interventional Cardiac MRI on a Series of 35 Patients With an Indication of Right Cardiac Catheterization.

The aim of this study is to evaluate the feasibility of collecting hemodynamic data from right catheterization, all anatomical, functional, flow and substrate determination data under MRI navigation.

Inclusion Criteria: * Patient over 18 years old * Having an indication for a diagnostic of right cardiac catheterization at the J Cartier Hospital for one of the following pathologies: dilated, restrictive cardiomyopathy, pulmonary arterial hypertension, chronic constrictive pericarditis, chronic post-embolic pulmonary heart. * Subject affiliated or beneficiary of a social security scheme * Patient having freely signed the informed consent. Exclusion Criteria: * Pregnancy (declarative, known pregnancy, any unexplained period delay in a woman of childbearing age) * Presence of a contraindication to MRI: intraocular metallic splinter, surgical clip for cerebral aneurysm, claustrophobia, defibrillator, implanted electronic equipment) or to gadolinium chelates (anaphylactic reactions to gadolinium chelates, creatinine clearance \