Evaluation of a New Ultrasound System for the Non-invasive Assessment of Liver Steatosis in MASLD/MASH Patients

Inclusion Criteria: * Adult patient below 80 yo * Patients with MASLD/MASH recruited in interventional trials requiring MRI PDFF +/- MRE per interventional protocol, OR * Patients with MASLD/MASH recruited in prospective cohorts requiring MRI PDFF +/- MRE per interventional protocol, OR * Patients referred to MRI-PDFF or MRE. * Patients who consented in written to participate in the study * Patients with ongoing social security coverage Exclusion Criteria: * Patient in their minority (less than 18 yo) or older than 80 yo, * Patient with active implants, * Patient presenting with a wound where the Hepatoscope exam shall be performed (abdominal right upper quadrant) * Patient with a history of decompensated cirrhosis, * Patient with a history of hepatocellular carcinoma, * Adult patient under tutorship, or unable to express informed consent, * Pregnant or breast-feeding * Person deprived from their liberty * Patient hospitalized without providing consent or in case of an emergency * Patient presenting with another know liver disease