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Discrimination of Alcoholic from Virus-Induced Cirrhosis on MR Imaging

¹ All authors: Department of Radiology, Yamaguchi University School of Medicine, 1-1-1 Minamikogushi, Ube, Yamaguchi 755-8505, Japan.

OBJECTIVE. The purpose of this study was to determine whether MR features help to differentiate virus-induced cirrhosis from alcoholic cirrhosis.

MATERIALS AND METHODS. The MR examinations of 53 patients with cirrhosis (38 men and 15 women; age range, 28-73 years) caused by hepatitis B (n = 16), hepatitis C (n = 18), or alcohol abuse (n = 19) were retrospectively reviewed independently by two radiologists. The following MR features were assessed by each radiologist independently: volume indexes of the spleen and of each liver segment (based on 3-axis measurements), the nodularity of the surface, and the presence of regenerative nodules, ascites, iron or fat deposition, varices or collateral veins, the right posterior hepatic notch, and an expanded gallbladder fossa.

RESULTS. The mean values of the volume index of the caudate lobe were significantly greater (p < 0.0001) in the group with alcoholic cirrhosis than those in the group with viral cirrhosis. The frequency of visualization of the right posterior hepatic notch in the patients with alcoholic cirrhosis was significantly greater (p < 0.05) than that in the patients with viral cirrhosis. The size of regenerative nodules of the liver in the patients with cirrhosis caused by hepatitis B was significantly greater (p < 0.02) than that in the patients with alcoholic cirrhosis.

CONCLUSION. Enlargement of the caudate lobe and the presence of the right posterior hepatic notch on MR imaging are more frequent findings of alcoholic cirrhosis than of virus-induced cirrhosis.

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