LITMUS Imaging Study

Inclusion Criteria: 1. Recruited to the European NAFLD Registry 2. Patient had a liver biopsy less than 3 months prior to enrolment into the study or is having a liver biopsy in less than 3 months' time for the assessment of NAFLD. 3. Participant is willing and able to give informed consent for participation in the study. Exclusion Criteria: 1. Patients that do not speak the language in which the patient information is written will be excluded. Due to the nature of the study, being able to read the information about the study or access to a relevant interpreter is a necessary criterion for participant's safety in regards to MR scanning. 2. Patients judged by the investigator to be unsuitable for inclusion in the study (e.g. where the investigator feels that the participant will not be able to comply with the study procedures) 3. Any contra-indication to Magnetic Resonance Imaging (MRI) (e.g. ferrous metal implants/fragments, implantable cardiac defibrillator or permanent pacemaker, metal clips following neurosurgery, pregnancy, other condition that would make MR scanning unsafe in the opinion of the scanner operator)