title: CT perfusion in acute stroke calls: A pictorial review and differential diagnoses.
abstract: CT perfusion is increasingly utilised in hyperacute stroke to facilitate diagnosis and patient selection for reperfusion therapies. This review article demonstrates eight examples of how CT perfusion can be used to diagnose stroke mimics and small volume infarcts, which can be easily missed on non-contrast CT, and to suggest the presence of an ischaemic penumbra. Radiologists involved in stroke management must understand the importance of rapid imaging acquisition and be confident in the prospective interpretation of this powerful diagnostic tool as we move into a new era of hyperacute stroke care.
authors.affiliation: Neurological Intervention and Imaging Service of WA (NIISwa), Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.
authors.forename: Albert H
authors.initials: AH
authors.lastname: Chiu
authors.affiliation: Neurological Intervention and Imaging Service of WA (NIISwa), Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Phillips
authors.affiliation: Neurological Intervention and Imaging Service of WA (NIISwa), Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.
authors.forename: Constantine C
authors.initials: CC
authors.lastname: Phatouros
authors.affiliation: Neurological Intervention and Imaging Service of WA (NIISwa), Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.
authors.forename: Tejinder P
authors.initials: TP
authors.lastname: Singh
authors.affiliation: Department of Neurology, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.|School of Medicine and Pharmacology, The University of Western Australia, Crawley, Western Australia, Australia.
authors.forename: Graeme J
authors.initials: GJ
authors.lastname: Hankey
authors.affiliation: Department of Neurology, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.|Western Australian Neuroscience Research Institute, Nedlands, Western Australia, Australia.
authors.forename: David J
authors.initials: DJ
authors.lastname: Blacker
authors.affiliation: Neurological Intervention and Imaging Service of WA (NIISwa), Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.
authors.forename: William
authors.initials: W
authors.lastname: McAuliffe
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001921:Brain / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography / Q000379:methods*; D002536:Cerebral Arteries / Q000000981:diagnostic imaging*; D000072226:Computed Tomography Angiography / Q000379:methods*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D020521:Stroke / Q000000981:diagnostic imaging*
keywords: CT perfusion; neuroradiology; stroke