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. 2016 Nov 7;8(1):91–100. doi: 10.1007/s13244-016-0529-y

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© The Author(s) 2016

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 4 — A 76-year-old patient seen in an emergency setting for right brachiofacial motor deficit 3 h after symptom onset. DWI (a), FLAIR (b), ASL (c), ASL/DWI fusion (d), and SWI (e and f) sequences in the axial plane. a Acute right superficial sylvian infarction. b The FLAIR sequence fails to visualise any infarct zone. Slow circulation in the cortical branch of the right middle cerebral artery, hypersignal (curved arrow). c Blue zone (white parentheses) visualises a wide right sylvian zone of hypoperfusion. d Mismatch: DWI hypersignal and ASL hypoperfusion. e Susceptibility vessel sign in the M2 segment of the right middle cerebral artery, thrombus. f Right sylvian (white parentheses) brush sign; the extension is the same as the hypoperfusion zone visible on the ASL sequence (image c)