Inclusion Criteria:  Patient with at least 18 years of age, treated for lymphoma (Hodgkin or non-Hodgkin) Treatment with a chemotherapy protocol containing Anthracyclines (ABVD protocol, enhanced BEACOPP, R CHOP, CHOP, CHOEP, EPOCH, ACVBP) Signed informed consent Affiliation to a social security system (AME excepted)  Exclusion Criteria:  FEVG<53% Cardiological symptomatic patient (Dyspnea, angina, palpitations, syncope, left ventricular insufficiency, right ventricular insufficiency, overall heart failure) Uncontrolled blood pressure (AP) (systolic AP > 140 mm Hg and/or diastolic AP > 90 mmHg) Myocardial infarction in the 3 months prior to inclusion Heart failure in the 3 months prior to inclusion Severe symptomatic or asymptomatic mitral valvulopathy Symptomatic or asymptomatic tight aortic stenosis Atrial Fibrillation Pregnant or lactating woman Hypersensitivity to 18F-FDG Patient under guardianship or curatorship