title: Plane measurement of three-dimensional CT images on the diagnosis of zygomatic fractures.
abstract: OBJECTIVE
  To investigate an available method for quantitative diagnosis of zygomatic fractures to quantitatively classify and diagnose the deformities of zygomatic fractures.
  
  
  METHODS
  Traditional X-ray, two and three dimensional CT images of 96 patients with zygomatic fractures were measured and analysed by computer-assisted measuring system before and after operation to diagnose the displacement and deformity of the fractures.
  
  
  RESULTS
  1. Using anthropology points and computer assisted measuring system, a new method was established to assess the displacement of the zygomatic fractures. 2. Displacement of the zygomatic fractures was approximately diagnosed by measuring different angle of 3D CT photographs. 3. A classification was proposed based on the deformities of the zygomatic fractures.
  
  
  CONCLUSIONS
  Computer-assisted 3D CT measuring system is accurate, reliable and feasible in clinic for diagnosing zygomatic fractures.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Peking University School of Stomotology, Beijing 100081, China.
authors.forename: Dongmei
authors.initials: D
authors.lastname: He
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhenkang
authors.initials: Z
authors.lastname: Zhang
authors.forename: Chaodong
authors.initials: C
authors.lastname: Liang
authors.forename: Rengui
authors.initials: R
authors.lastname: Wang
authors.forename: Guangjian
authors.initials: G
authors.lastname: Tang
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D015051:Zygomatic Fractures / Q000175:diagnosis*