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Hyperacute infarction (2 hours after onset) in a 39-year-old man with the left internal carotid artery dissection presenting with right-sided weakness.

Published byΟἰδίπους Γούναρης Modified over 5 years ago

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Presentation on theme: "Hyperacute infarction (2 hours after onset) in a 39-year-old man with the left internal carotid artery dissection presenting with right-sided weakness."— Presentation transcript:

1 Hyperacute infarction (2 hours after onset) in a 39-year-old man with the left internal carotid artery dissection presenting with right-sided weakness. Hyperacute infarction (2 hours after onset) in a 39-year-old man with the left internal carotid artery dissection presenting with right-sided weakness. (From Moritani T, Ekholm S, Westesson PL. Diffusion-Weighted MR Imaging of the Brain. Berlin: Springer-Verlag; Used with permission.)A, Fluid-attenuated inversion recovery (FLAIR) image shows no apparent parenchymal abnormalities, but linear hyperintensities represent slow flow in the peripheral vessels (arrows). B and C, DW images show a mildly hyperintense lesion with decreased ADC in the left frontoparietal white matter; this represents cytotoxic edema extending into the ischemic penumbra, propagated by excitotoxic mechanisms (arrows).D, Perfusion-weighted image shows prolonged mean time to peak in the entire left MCA and anterior cerebral artery territories. Toshio Moritani et al. AJNR Am J Neuroradiol 2005;26: ©2005 by American Society of Neuroradiology

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