Application and comparison of techniques for three-dimensional analysis of craniofacial anomalies

Amanda H. Abbott*, David J. Netherway, David J. David, Tasman Brown

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Traditionally, cephalometric analysis has been limited to data determined from two-dimensional (2-D) cephalograms. With imaging facilities such as CT and biplanar radiography now available, the natural extension has been towards the use of three-dimensional (3-D) coordinate positions of landmarks for comparative purposes. While these data have been potentially available for several years, the accurate and reproducible extraction of anatomic landmarks suitable for comparative purposes has been limited. This paper presents results of the application of traditional comparative techniques to well determined 3-D coordinate data acquired from biplanar radiography and CT for a patient with Treacher Collins syndrome and further provides a comparison with the technique of strain analysis, often referred to as finite element analysis, which has been applied recently to craniofacial data. Comparisons of distances and angles between landmarks, landmark coordinate positions, and strains of the patient relative to experimental reference standards reveal that the essential skeletal features of Treacher Collins syndrome have been identified and quantified by the analysis techniques. Further, a measure of the significance of the deviations has been determined by comparisons with the experimental reference standards.

Original languageEnglish
Pages (from-to)119-134
Number of pages16
JournalJournal of Craniofacial Surgery
Volume1
Issue number3
Publication statusPublished - 1990
Externally publishedYes

Keywords

  • 3-D quantification
  • Biplanar radiography
  • Craniofacial complex
  • CT
  • Distances and angles
  • Experimental standards
  • Landmark alignment
  • Strain analysis
  • Treacher Collins syndrome

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