Assessment of the 3-d reconstruction and high-resolution geometrical modeling of the human skeletal trunk from 2-D radiographic images

IEEE Trans Biomed Eng. 2003 Aug;50(8):989-98. doi: 10.1109/TBME.2003.814525.

Abstract

This paper presents an in vivo validation of a method for the three-dimensional (3-D) high-resolution modeling of the human spine, rib cage, and pelvis for the study of spinal deformities. The method uses an adaptation of a standard close-range photogrammetry method called direct linear transformation to reconstruct the 3-D coordinates of anatomical landmarks from three radiographic images of the subject's trunk. It then deforms in 3-D 1-mm-resolution anatomical primitives (reference bones) obtained by serial computed tomography-scan reconstruction of a dry specimen. The free-form deformation is calculated using dual kriging equations. In vivo validation of this method on 40 scoliotic vertebrae gives an overall accuracy of 3.3 +/- 3.8 mm, making it an adequate tool for clinical studies and mechanical analysis purposes.

Publication types

  • Clinical Trial
  • Comparative Study
  • Research Support, Non-U.S. Gov't
  • Validation Study

MeSH terms

  • Humans
  • Imaging, Three-Dimensional / methods*
  • Observer Variation
  • Pelvic Bones / diagnostic imaging
  • Photogrammetry / methods
  • Quality Control
  • Radiographic Image Interpretation, Computer-Assisted / methods*
  • Radiography / methods
  • Reproducibility of Results
  • Ribs / diagnostic imaging
  • Scoliosis / diagnostic imaging*
  • Sensitivity and Specificity
  • Spine / abnormalities
  • Spine / diagnostic imaging*
  • Subtraction Technique
  • Tomography, X-Ray Computed / methods