A computer-based method for calculation of orbital floor fractures from coronal computed tomography scans

O. Ploder, C. Klug, M. Voracek, W. Backfrieder, M. Tschabitscher, C. Czerny, A. Baumann

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

Purpose: A computer program recently developed for the calculation of the orbital floor and fracture areas from coronal computed tomography (CT) scans was used in a study to evaluate the accuracy and ability of this new method. Material and Methods: The size of orbital floors and fabricated fractures in 14 dried, anatomic specimens were measured in coronal CT scans by 3 independent observers. Based on this data set, the orbital floor and fracture regions were calculated with the newly developed computer program. These calculated regions were then compared with a direct measurement of the specimens that had been obtained by digital photography. The accuracy of the computer-based calculations was assessed using Lin's concordance correlation coefficient. Results: The size of the orbital floor (mean ± SD) was found to be 5.21 ± 0.39 cm2 by direct measurement of the specimens and 5.30 ± 0.52 cm2 by calculation with the computer program. The region of the fracture (mean ± SD) was 1.05 ± 0.64 cm2 by direct measurement and 1.01 ± 0.62 cm2 by computer calculation. The between-method mean difference (direct measurement minus computer based calculation) was -0.09 cm2 (or 1.7% of mean orbital floor region) for orbital floor region and 0.04 cm2 (or 3.8% of mean fracture region) for fracture region. Conclusions: This accurate and time-saving method is practicable for determining the size and location of orbital floor fractures. This calculation program can be advantageously applied in the clinical management of blowout fractures of the orbit.

Original languageEnglish
Pages (from-to)1437-1442
Number of pages6
JournalJournal of Oral and Maxillofacial Surgery
Volume59
Issue number12
DOIs
Publication statusPublished - 2001
Externally publishedYes

Keywords

  • Algorithms
  • Humans
  • Orbital Fractures/diagnostic imaging
  • Radiographic Image Interpretation, Computer-Assisted/methods
  • Reproducibility of Results
  • Software Validation
  • Tomography, X-Ray Computed/methods

Fingerprint Dive into the research topics of 'A computer-based method for calculation of orbital floor fractures from coronal computed tomography scans'. Together they form a unique fingerprint.

Cite this