title: Cone-Beam Computed Tomography contrast validation of an artificial periodontal phantom for use in endodontics.
abstract: Validation of image processing techniques such as endodontic segmentations in cone-beam computed tomography (CBCT) is a challenging issue because of the lack of ground truth in in vivo experiments. The purpose of our study was to design an artificial surrounding tissues phantom able to provide CBCT image quality of real extracted teeth, similar to in vivo conditions. Note that these extracted teeth could be previously scanned using micro computed tomography (μCT) to access true quantitative measurements of the root canal anatomy. Different design settings are assessed in our study by comparison to in vivo images, in terms of the contrast-to-noise ratio (CNR) obtained between different anatomical structures. Concerning the root canal and the dentine, the best design setup allowed our phantom to provide a CNR difference of only 3% compared to clinical cases.
authors.forename: Jerome
authors.initials: J
authors.lastname: Michetti
authors.forename: Adrian
authors.initials: A
authors.lastname: Basarab
authors.forename: Michel
authors.initials: M
authors.lastname: Tran
authors.forename: Franck
authors.initials: F
authors.lastname: Diemer
authors.forename: Denis
authors.initials: D
authors.lastname: Kouame
mesh_terms: D054893:Cone-Beam Computed Tomography / Q000379:methods*; D004708:Endodontics / Q000295:instrumentation; D006801:Humans; D019047:Phantoms, Imaging; D011857:Radiographic Image Interpretation, Computer-Assisted; D059629:Signal-To-Noise Ratio; D014070:Tooth / Q000000981:diagnostic imaging; D055114:X-Ray Microtomography / Q000379:methods