title: Advanced brain imaging studies should not be performed in patients with suspected stroke presenting within 4.5 hours of symptom onset.
authors.affiliation: Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, CA, USA. lydenp@cshs.org
authors.forename: Patrick D
authors.initials: PD
authors.lastname: Lyden
mesh_terms: D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D020521:Stroke / Q000000981:diagnostic imaging*; D013997:Time Factors