Conditional variability of statistical shape models based on surrogate variables

Rémi Blanc, Mauricio Reyes, Christof Seiler, Gábor Székely

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingAcademicpeer-review

Abstract

We propose to increment a statistical shape model with surrogate variables such as anatomical measurements and patient-related information, allowing conditioning the shape distribution to follow prescribed anatomical constraints. The method is applied to a shape model of the human femur, modeling the joint density of shape and anatomical parameters as a kernel density. Results show that it allows for a fast, intuitive and anatomically meaningful control on the shape deformations and an effective conditioning of the shape distribution, allowing the analysis of the remaining shape variability and relations between shape and anat omy. The approach can be further employed for initializing elastic registration methods such as Active Shape Models, improving their regularization term and reducing the search space for the optimization.

Original languageEnglish
Title of host publicationInternational Conference on Medical Image Computing and Computer-Assisted Intervention
Pages84-91
Number of pages8
Volume12
EditionPt 2
Publication statusPublished - 2009
Externally publishedYes

Publication series

SeriesMedical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention

Keywords

  • Algorithms
  • Effect Modifier, Epidemiologic
  • Femur/diagnostic imaging
  • Humans
  • Imaging, Three-Dimensional/methods
  • Models, Anatomic
  • Models, Biological
  • Models, Statistical
  • Pattern Recognition, Automated/methods
  • Radiographic Image Enhancement/methods
  • Radiographic Image Interpretation, Computer-Assisted/methods
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Tomography, X-Ray Computed/methods

Cite this

Blanc, R., Reyes, M., Seiler, C., & Székely, G. (2009). Conditional variability of statistical shape models based on surrogate variables. In International Conference on Medical Image Computing and Computer-Assisted Intervention (Pt 2 ed., Vol. 12, pp. 84-91). Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention