title: Cone-beam computed tomography images of phantoms with simulating trabecular bone structure fabricated using micro-stereolithography.
abstract: OBJECTIVE
  Phantoms with simulating mandibular trabecular bone structure fabricated using micro-stereolithography were applied for a quantitative evaluation of cone-beam computed tomography (CT) images.
  
  
  METHODS
  Phantoms with a three-dimensional lattice, in which a square pillar was set at 0.10, 0.20, 0.30 and 0.40 mm at the edge, spaced at 0.60 mm, were made of an acrylic resin using micro-stereolithography. Cone-beam CT with a 0.1 mm-cubic voxel was then performed, and a plot profile of voxel values was analyzed.
  
  
  RESULTS
  The plot profiles of seven peaks corresponding to pillars in phantoms with 0.20, 0.30 and 0.40 mm-pillars were visually observed in cone-beam CT images. However, peaks of corresponding pillars in the 0.10 mm-pillar phantom could not be distinguished. The differences between average measured and designed distance were very small.
  
  
  CONCLUSIONS
  Cone-beam CT images of phantoms with 0.20, 0.30 and 0.40 mm-pillars fabricated using microstereolithography were obtained.
authors.affiliation: Department of Oral and Maxillofacial Radiology, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan. mune@dpc.aichi-gakuin.ac.jp
authors.forename: Munetaka
authors.initials: M
authors.lastname: Naitoh
authors.forename: Hiroko
authors.initials: H
authors.lastname: Kinoshita
authors.forename: Kenichi
authors.initials: K
authors.lastname: Gotoh
authors.forename: Eiichiro
authors.initials: E
authors.lastname: Ariji
mesh_terms: D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008334:Mandible / Q000000981:diagnostic imaging*; D008422:Materials Testing; D008954:Models, Biological; D019047:Phantoms, Imaging; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*