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Table 2 Hydrogen-1 MR spectroscopy grading of fatty liver

From: Recent advances in non-invasive diagnosis and medical management of non-alcoholic fatty liver disease in adult

Grading of fatty liver Hydrogen-1 MR spectroscopy findings
Grade 0 steatosis Proton density fat fraction threshold of less than 17.0%
Grade 1 steatosis Proton density fat fraction threshold of 17.0–38.6%
Grade 2 or greater steatosis Proton density fat fraction threshold greater than 38.6%