Phase IV Study to Evaluate the Effects of Statin Monotherapy or Statin / Ezetimibe Combination Therapy on Hepatic Steatosis in Patients With Hyperlipidemia and Nonalcoholic Fatty Liver Disease

To investigate the therapeutic effect of ezetimibe on nonalcoholic fatty liver disease, the effect of rosuvastatin 5mg monotherapy and rosuvastatin 5mg / ezetimibe 10mg combination therapy n patients with hyperlipidemia and fatty liver will be compared and analyzed. This study included a total of 70 patients (35 per subgroup) for randomized controlled trials with prospective, open label, randomized, single-institution clinical trials. The drug will be maintained for a total of six months. The primary endpoint is the difference of liver fat change measured by MRI-PDFF in colocalized regions of interest within nine liver segments between two groups.