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. 2016 Dec 19;1(4):147–153. doi: 10.1136/svn-2016-000024

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Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

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Images obtained of a 56-year-old man who manifested with transient right hemiparesis due to cerebral hypoperfusion caused by near occlusion carotid artery. (A) CT angiography showing near occlusion at the ICA origin; (B) right carotid angiography before angioplasty showing near occlusion at the ICA origin; (C) CTP scan in the resting state showing that CBF is severely decreased, CBV, MTT and TTP in the right cerebral hemisphere are severely increased. CTP, CT perfusion; CBF, cerebral blood flow; CBV, cerebral blood volume; ICA, internal carotid artery; MTT, mean transit time; TTP, time to peak.