title: A three-dimensional evaluation of the upper airway in adolescents.
abstract: The link between the facial growth and airway function has been a subject of controversy in orthodontics for many years. This study investigates how well lateral cephalometric headfilms depict three-dimensional upper airway structures. Subjects are 11 normal adolescent children, ages 7-16 years old. Airway information over the same anatomic area in the nasopharynx is compared between lateral cephalometric headfilms and three-dimensional cone beam computed tomography (CT) scans. Intra-subject proportion of airway volume to area shows moderate variability. CT airway volume shows more variability than corresponding headfilm airway area.
authors: Department of Growth and Development, University of California, Division of Orthodontics, San Francisco, CA 94143, USA. cabouda@itsa.ucsf.edu
authors: C A
authors: CA
authors: Aboudara
authors: D
authors: D
authors: Hatcher
authors: I L
authors: IL
authors: Nielsen
authors: A
authors: A
authors: Miller
mesh_terms: D000293:Adolescent; D002508:Cephalometry / Q000379:methods; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods; D008297:Male; D008445:Maxillofacial Development; D009305:Nasopharynx / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D010865:Pilot Projects; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods