title: Artefacts in CBCT: a review.
abstract: Artefacts are common in today's cone beam CT (CBCT). They are induced by discrepancies between the mathematical modelling and the actual physical imaging process. Since artefacts may interfere with the diagnostic process performed on CBCT data sets, every user should be aware of their presence. This article aims to discuss the most prominent artefacts identified in the scientific literature and review the existing knowledge on these artefacts. We also briefly review the basic three-dimensional (3D) reconstruction concept applied by today's CBCT scanners, as all artefacts are more or less directly related to it.
authors.affiliation: Department of Oral Surgery (and Oral Radiology), University Medical Center of the Johannes Gutenberg-University, Augustusplatz 2, 55131 Mainz, Germany. rschulze@mail.uni-mainz.de
authors.forename: R
authors.initials: R
authors.lastname: Schulze
authors.forename: U
authors.initials: U
authors.lastname: Heil
authors.forename: D
authors.initials: D
authors.lastname: Gross
authors.forename: D D
authors.initials: DD
authors.lastname: Bruellmann
authors.forename: E
authors.initials: E
authors.lastname: Dranischnikow
authors.forename: U
authors.initials: U
authors.lastname: Schwanecke
authors.forename: E
authors.initials: E
authors.lastname: Schoemer
mesh_terms: D000465:Algorithms; D016477:Artifacts; D054893:Cone-Beam Computed Tomography; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods; D008962:Models, Theoretical; D019047:Phantoms, Imaging; D011856:Radiographic Image Enhancement / Q000379:methods; D012542:Scattering, Radiation