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AJNR - American Journal of Neuroradiology

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Does High-field MR Imaging Have an Influence on the Classification of Patients with Clinically Isolated Syndromes According to Current Diagnostic MR Imaging Criteria for Multiple Sclerosis?

M.P. Wattjes^a, M. Harzheim^b, C.K. Kuhl^a, J. Gieseke^a, S. Schmidt^b, L. Klotz^b, T. Klockgether^b, H.H. Schild^a and G.G. Lutterbey^a

^a Department of Radiology/Neuroradiology, University Hospital of Bonn, Bonn, Germany
^b Department of Neurology, University Hospital of Bonn, Bonn, Germany

View larger version (105K): [in a new window]   Fig 1. Top row: T2-weighted images of a 19-year-old patient presenting with unilateral optic neuritis. One infratentorial lesion in the brain stem (arrow) could be identified on the 3T image but not on the corresponding 1.5T image. Bottom row: FLAIR images of a 30-year-old patient presenting with unilateral optic neuritis. The 3T image shows infratentorial lesions in the brain stem and the cerebellum (arrows) which were not prospectively identified on the corresponding 1.5T image.

View larger version (111K): [in a new window]   Fig 2. Identical axial sections of FLAIR images within the supratentorial brain obtained at 3T (left) and 1.5T (right) MR imaging. One more juxtacortical lesion (arrow) could be identified on the 3T FLAIR images in comparison with the corresponding 1.5T examination.