title: Accuracy of cone beam computed tomography in determining the location of the genial tubercle.
abstract: OBJECTIVE
  To determine the accuracy of cone beam computed tomography (CT) to predict the location of the genial tubercle.
  
  
  METHODS
  Cadaver study for anatomic analysis of 17 adult human cadaver heads. Each skull/cadaver head underwent radiographic imaging with cone beam CT and cadaver dissection. Measurements, including mandibular height (MH), genial tubercle width (GTW), genial tubercle height (GTH), distance from inferior border of mandible to genial tubercle (IBM/GT), and mandibular thickness (MT) were recorded.
  
  
  RESULTS
  Statistical analysis with paired t test showed no significant difference between cadaver dissections versus cone beam measurements. Ninety-five percent confidence intervals (CI) were as follows: GTW (-0.2 to 1.0), GTH (-0.1 to 0.9), distance IBM/GT (-0.8 to 5.0), MH (-1.3 to -2.6), and MT (-0.1 to 0.3).
  
  
  CONCLUSIONS
  These results show the accuracy of the 3D cone beam CT in the anatomic location of the genial tubercle.
  
  
  CONCLUSIONS
  This radiographic technique may prove useful in pre-operative planning for the mandibular osteotomy in genioglossus advancement procedures.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Texas Health Science Center San Antonio, San Antonio, TX 78229, USA.
authors.forename: Elizabeth M
authors.initials: EM
authors.lastname: Hueman
authors.forename: Marcel E
authors.initials: ME
authors.lastname: Noujeim
authors.forename: Robert P
authors.initials: RP
authors.lastname: Langlais
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Prihoda
authors.forename: Frank R
authors.initials: FR
authors.lastname: Miller
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D002102:Cadaver; D002508:Cephalometry / Q000379:methods; D002680:Chin / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D004210:Dissection; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008334:Mandible / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*