Adverse Myocardial and Vascular Side Effects of Immune Checkpoint Inhibitors

Inclusion Criteria: \- prescribed treatment by immune checkpoint inhibitors (ICI) for cancer Exclusion Criteria: * previous treatment by any ICI * any contraindication to cardiac resonance magnetic imaging * contraindication to gadoteric acid, meglumin or any gadolinium-based contrast agent * pace maker or automated implantable defibrilator * pregnancy, breastfeeding * women of childbearing potential who do not use one of the following methods of birth control: hormonal contraception or intrauterine device or bilateral tubal occlusion * patient under legal protection * renal failure defined by creatinine clearance \<30ml/min/m² (CKD-EPI) * current participation or exclusion period of another interventional clinical study Exclusion Criteria for ancillary studies: \- hemoglobinemia \< 9 g/dl