title: Towards evidence based emergency medicine: best BETs from the Manchester Royal Infirmary. BET 4. Computed tomographic angiography for detection of subarachnoid haemorrhage.
authors.affiliation: Manchester Royal Infirmary, Manchester, UK.
authors.forename: Ayan
authors.initials: A
authors.lastname: Sen
authors.forename: Shweta
authors.initials: S
authors.lastname: Gidwani
authors.forename: Craig
authors.initials: C
authors.lastname: Ferguson
mesh_terms: D000328:Adult; D002533:Cerebral Angiography / Q000379:methods*; D004630:Emergencies; D019317:Evidence-Based Medicine; D006801:Humans; D008297:Male; D013129:Spinal Puncture; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*