Spectrum of paradural dissections of the vertebral artery

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Spectrum of paradural dissections of the vertebral artery Teaching NeuroImages Neurology Resident and Fellow Section © 2015 American Academy of Neurology

Jensen-Kondering et al. Vignette Dissections of the vertebral artery are considered an important cause for stroke especially in younger patients. Most dissections occur at the atlas loop where the vessel has its greatest mobility but can also extend into the intradural segments or primarily arise within the intradural segment. Jensen-Kondering et al. © 2015 American Academy of Neurology

Jensen-Kondering et al. Imaging Coronal T1w fat saturated images demonstrating a purely extradural dissection (A), extending to the level of the dura (B), intra- and extradural dissection (C), purely intradural (D) and a dissection originating from the level of the dura (E). Jensen-Kondering et al. © 2015 American Academy of Neurology

Spectrum of paradural dissections of the vertebral artery Fat saturated T1w images can reliably demonstrate the location and extent of the mural hematoma and thus contribute to therapeutic decisions. Antiplatelet therapy or anticoagulation for 3-6 months is efficient in patients with extradural dissections while antiplatelet therapy is usually preferred if the dissection is intradural. 1: CADISS trial investigators, Markus HS, Hayter E, Levi C, Feldman A, Venables G, Norris J. Antiplatelet treatment compared with anticoagulation treatment for cervical artery dissection (CADISS): a randomised trial. Lancet Neurol 2015;14:361-367. 2: Fiebach J, Brandt T, Knauth M, Jansen O. MRI with fat suppression in the visualization of wall hematoma in spontaneous dissection of the internal carotid artery [in German]. RoFo 1999;171:290-293. Jensen-Kondering et al. © 2015 American Academy of Neurology