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Neurology 2002;59:335-341 © 2002 American Academy of Neurology Normalization of T2 signal abnormalities in hemispheric white matter with liver transplantFrom the Magnetic Resonance Unit (IDI) (Department of Radiology) (Drs. Rovira, Rovira-Gols, Grivé, and Alonso) and Liver Unit (Department of Internal Medicine) (Drs. Córdoba and Sanpedro), Hospital Universitari Vall dHebron, Barcelona, Spain. Address correspondence and reprint requests to Dr. A. Rovira-Cañellas, Magnetic Resonance Unit (Department of Radiology), Hospital Universitari Vall dHebron, Passeig Vall dHebron 119-129, 08035 Barcelona, Spain; e-mail: alex.rovira{at}idi-cat.org Objective: To determine whether edema can be assessed by MRI using T2-weighted signal intensity of hemispheric white matter in cirrhotic patients. Methods: Fast-FLAIR and magnetization transfer images were obtained before (24) and after (11) liver transplantation. T2-weighted abnormalities on baseline scans and their time-course changes were analyzed and compared with MT ratios (MTR). Results: Fast-FLAIR baseline images showed faint to substantial, bilateral, symmetric increased signal intensity along the hemispheric white matter in or around the corticospinal tract in 23/24 patients. After liver transplantation the signal abnormalities gradually recovered. This gradual decrease in signal intensity correlated with an increase in MTR values. Conclusion: Asymptomatic symmetric high-signal intensity in the hemispheric white matter on fast-FLAIR MR images is present in cirrhosis. Normalization of this finding after successful liver transplantation and its correlation with MTR values suggest that this signal abnormality reflects mild edema. This article has been cited by other articles:
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