GPT and metabolic dysfunction-associated steatotic liver disease: However, other studies [20, 21] found that there was no significant correlation between NAFLD and 18F-FDG uptake, which is consistent with our findings that there was no significant difference in hepatic 18F-FDG uptake between NAFLD patients with abnormal liver function (ALT ≥50 u/L) and NAFLD patients with normal liver function (P > 0.05).