Magnetic resonance imaging in the assessment of brain involvement in alcoholic and nonalcoholic Wernicke’s encephalopathy

Figure 5 Magnetic resonance images in a patient affected by alcoholic Wernicke’s encephalopathy. A-D: MR images before intravenous administration of thiamine therapy; E-H: MR images after intravenous administration of thiamine therapy. Axial FLAIR images (A,B) and DWI images (C,D) show signal abnormalities in the periaqueductal area and in the medial thalami. Axial FLAIR (E,F) and DWI (G,H) follow-up MR images, after intravenous administration of thiamine therapy, show resolution of the signal abnormalities previously observed. MR: Magnetic resonance; FLAIR: Fluid-attenuated inversion recovery; DWI: Diffusion weighted image.