title: Reply.
authors.affiliation: Department of Radiology University of Cambridge Addenbrooke's Hospital Cambridge, UK.
authors.forename: J
authors.identifier: 0000-0001-7223-2757
authors.initials: J
authors.lastname: Yuan
authors.affiliation: Department of Radiology University of Cambridge Addenbrooke's Hospital Cambridge, UK.
authors.forename: M
authors.identifier: 0000-0003-4327-3052
authors.initials: M
authors.lastname: Graves
mesh_terms: D016893:Carotid Stenosis; D006801:Humans; D014463:Ultrasonography