RT Journal Article SR Electronic T1 Proton MR Spectroscopy of Wernicke Encephalopathy JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1803 OP 1806 VO 23 IS 10 A1 Mario Mascalchi A1 Giacomo Belli A1 Laura Guerrini A1 Marco Nistri A1 Ines Del Seppia A1 Natale Villari YR 2002 UL http://www.ajnr.org/content/23/10/1803.abstract AB Summary: Two patients with acute thiamine deficiency were examined with thalamic single-voxel proton MR spectroscopy. T2-weighted images exhibited increased signal intensity. N-acetylaspartate (NAA)/creatine (Cr) ratios were low without detectable lactate. Owing to substantially decreased choline (Cho) T2, the Cho/Cr ratio was not decreased. After thiamine therapy, the NAA/Cr ratio increased, paralleling clinical improvement and reduction in the areas of signal-intensity changes.