Evaluation of nonalcoholic fatty liver disease using magnetic resonance in obese children and adolescents.

Objective: To determine the frequency of nonalcoholic fatty liver disease using nuclear magnetic resonance as a noninvasive method.

Methodology: This was a cross-sectional study conducted on 50 children and adolescents followed up at an outpatient obesity clinic. The subjects were submitted to physical examination, laboratory tests (transaminases, liver function tests, lipid profile, glycemia, and basal insulin) and abdominal nuclear magnetic resonance (calculation of hepatic, visceral, and subcutaneous fat).