title: To scan or not to scan, to enhance or not to enhance? That is the question.
authors.affiliation: Department of Trauma and Orthopaedics, Lister Hospital, Stevenage, Hertfordshire SG1 4AB, United Kingdom.
authors.forename: Lily
authors.initials: L
authors.lastname: Li
authors.affiliation: Emergency Department, Royal Free Hospital, London NW3 2QG, United Kingdom.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Costello
mesh_terms: D001165:Arteriovenous Malformations / Q000150:complications / Q000000981:diagnostic imaging*; D001927:Brain Diseases / Q000150:complications / Q000000981:diagnostic imaging*; D002648:Child; D003287:Contrast Media / Q000008:administration & dosage; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009778:Occipital Lobe / Q000098:blood supply; D010296:Parietal Lobe / Q000098:blood supply; D012640:Seizures / Q000209:etiology; D012815:Signal Processing, Computer-Assisted; D014057:Tomography, X-Ray Computed; D014474:Unconsciousness / Q000209:etiology
chemical_list: D003287:Contrast Media