title: Who needs a lumbar CT scan?
authors.forename: M D
authors.initials: MD
authors.lastname: Ryan
authors.forename: S J
authors.initials: SJ
authors.lastname: Ruff
authors.forename: P
authors.initials: P
authors.lastname: Robertson
mesh_terms: D001416:Back Pain / Q000000981:diagnostic imaging*; D006801:Humans; D008161:Lumbosacral Region; D012585:Sciatica / Q000000981:diagnostic imaging*; D013116:Spinal Cord / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed