The purpose of this study is to explore the value of new MR technology in assessing the systemic metabolism, disease status, and prognostic risk of metabolism-related fatty liver disease. By obtaining clinical, imaging, laboratory examination and pathological data of metabolism-related fatty liver disease, image processing software is used to analyze the images, explore the relationship between imaging parameters, body composition and metabolic diseases and metabolism-related fatty liver disease, and achieve non-invasive diagnosis, efficacy evaluation, and prognosis prediction of metabolism-related fatty liver disease. Thereby guiding clinical treatment and improving the prognosis and quality of life of patients with metabolism-related fatty liver disease