New Fatty Liver Index (IMAGE) Deutsches Zentrum fuer Diabetesforschung DZD Caption The Fatty Liver Index (FLI) consists of the parameters age, waist circumference, and triglyceride levels (TG) measured in the blood in a fasting state, and gamma-glutamyl transpeptidase (GGT). Credit © DZD/IDM Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.