American Journal of Neuroradiology 21:1039-1042 (6 2000)
© 2000 American Society of Neuroradiology
ARTICLE
MR Venography of Multiple Sclerosis
a From the Departments of Radiology (IL.T., M.A.A.v.W., R.A.M, F.B.) and Clinical Physics & Informatics (R.A.v.S., P.J.W.P.), University Hospital Vrije Universiteit, Amsterdam; and the Institute of Diagnostic and Interventional Radiology, Friedrich Schiller Universiteit, Jena, Germany (J.R.R.).
BACKGROUND AND PURPOSE: The distribution of multiple sclerosis (MS) lesions in the brain follows a specific pattern, with most lesions in the periventricular regions and in the deep white matter; histopathologic studies have shown a perivenous distribution. The aim of this study was to illustrate these distribution patterns in vivo using high-resolution MR venography.
METHODS: Seventeen MS patients underwent MR imaging at 1.5 T. Venographic studies were obtained with a 3D gradient-echo technique. MS lesions were identified on T2-weighted images, and their shape, orientation, and location were compared with the venous anatomy on the venograms.
RESULTS: The use of contrast material facilitated the visualization of small veins and increased the number of veins seen. A total of 95 MS lesions could be identified on both the T2-weighted series and the venograms; a central vein was visible in all 43 periventricular lesions and in all but one of the 52 focal deep white matter lesions. The typical ovoid shape and orientation of the long axis of the MS lesions correlated well with the course of these veins.
CONCLUSION: With MR venography, the perivenous distribution of MS lesions in the brain can be visualized in vivo. The venous anatomy defines the typical form and orientation of these lesions.
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