Fig 2. Graph shows hepatic encephalopathy-grading and occipital white matter MTR in mean values; whiskers show SD. White matter MTR of alcoholics, graded any hepatic encephalopathy, and white matter MTR of nonalcoholics with overt hepatic encephalopathy (HRO) are reduced, compared with that of controls (C0) (P < 0.05; Mann-Whitney U test).