Özet:

INTRODUCTION: The aim of this study is to determine the correlation between hepatic steatosis with quantitative MR findings in patients diagnosed by chemical shift magnetic resonance imaging method, and previous liver biopsy as nonalcoholic fatty liver disease. METHODS: Thirty-one patients (15 females, 16 males) who had histopathologically diagnosed as nonalcoholic liver disease in Goztepe Training and Research Hospital Department of Radiology between 01.01.2011-15.02.2011underwent dual-echo GRE chemical shift imaging method. Using SI signal intensity ratio (same phase)-SI (external phase) / 2 SI (same phase) ratio, intensity formula was constructed. Rates between 9 to 18 % were accepted as internediate steatosis, and higher rates than 18 % indicated severe steatosis. RESULTS: In MRI evaluation of steatotic conditions, the patients had grade 1 (n=7; 22.6 %), 2 (n=19; 61.3 %), and 3 (n=5; 16.1 %) steatosis. Based on histopathological evaluation, 19,4 % of patients (n=6), grade 1, 64,5 % ‘patients (n=20) grade 2 and 16,1 % of patients (n=5) had grade 3 steatosis. The degree of steatosis demonstrated the presence of a strong correlation between histopathological and MRI evaluations. Six (19.4 %) patients in both groups had grade 1 steatosis. Histopathologically, 20 (64.5 %) patients had grade 2 steatosis, while grade 2 steatosis was detected in 19 patients using MR criteria.. One patient had grade 1 steatosis. Finally, in both groups, 16.1 % (n=5) of the patients had grade 3 steatosis. The degree of steatosis grading with histopathology and MRI correlated with a high level of compliance (94 %) as assessed by Cohen Kappa method. DISCUSSION AND CONCLUSION: MRI study was found as a sensitive method to determine the steatosis and degree of steatosis.

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