Orbital Volume Changes During Growth And Development In Human Children Assessed Using Cone Beam Computed Tomography
Smith, Eric
2020-04
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Orbital Volume Changes During Growth And Development In Human Children Assessed Using Cone Beam Computed Tomography
Authors
Published Date
2020-04
Publisher
Type
Thesis or Dissertation
Abstract
Purpose: To measure growth-related changes in orbital volume from childhood to the late teenage years. Design: A retrospective cohort study. Subjects: Healthy Caucasian children (ages 6–18 years) with existing serial craniofacial cone-beam computed tomography scans. The final sample consisted of 65 subjects (24 male, 41 female) and a total of 300 separate orbits. Methods: Each orbit was transformed into a closed space with well-defined boundaries, and orbital volume was measured using manual segmentation. A novel statistical analysis was applied to extract the maximum amount of longitudinal information from the data. Intra- and inter-operator correlation coefficients were calculated from replications performed on 10% of the sample. Main Outcome Measures: Orbital volume (mm3). Results: Orbital volume was found to increase at a rate of 1–2% annually until the late teenage years. Intra- and inter-operator agreement between repeated measurements were >90%. Conclusions: Orbital volume increases by 1–2% per year throughout childhood continuing until the late teens. Although this annual increase is small, it may be clinically relevant as it may lead to less-than-optimal long term surgical outcomes when reconstructive surgery for the pediatric anophthalmic socket is required.
Description
University of Minnesota M.S. thesis. April 2020. Major: Dentistry. Advisor: Thorsten Gruenheid. 1 computer file (PDF); v, 45 pages.
Related to
Replaces
License
Series/Report Number
Funding information
Isbn identifier
Doi identifier
Previously Published Citation
Suggested citation
Smith, Eric. (2020). Orbital Volume Changes During Growth And Development In Human Children Assessed Using Cone Beam Computed Tomography. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/215033.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.