Nonlinear registration of brain images using deformable models

Christos Davatzikos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A key issue in several brain imaging applications, including computer aided neurosurgery, functional image analysis, and morphometrics, is the spatial normalization and registration of tomographic images from different subjects. This paper proposes a technique for spatial normalization of brain images based on elastically deformable models. In our approach we use a deformable surface algorithm to find a parametric representation of the outer cortical surface and then use this representation to obtain a map between corresponding regions of the outer cortex in two different images. Based on the resulting map we then derive a three-dimensional elastic warping transformation which brings two images in register. This transformation models images as inhomogeneous elastic objects which are deformed into registration with each other by external force fields. The elastic properties of the images can vary from one region to the other, allowing more variable brain regions, such as the ventricles, to deform more freely than less variable ones. Finally, we use prestrained elasticity to model structural irregularities, and in particular the ventricular expansion occurring with aging or diseases. The performance of our algorithm is demonstrated on magnetic resonance images.

Original languageEnglish (US)
Title of host publicationProceedings of the Workship on Mathematical Methods in Biomedical Image Analysis
Editors Anon
PublisherIEEE
Pages94-103
Number of pages10
StatePublished - 1996
EventProceedings of the 1996 Workshop on Mathematical Methods in Biomedical Image Analysis - San Francisco, CA, USA
Duration: Jun 21 1996Jun 22 1996

Other

OtherProceedings of the 1996 Workshop on Mathematical Methods in Biomedical Image Analysis
CitySan Francisco, CA, USA
Period6/21/966/22/96

Fingerprint

Brain
Neurosurgery
Computer applications
Magnetic resonance
Image analysis
Elasticity
Aging of materials
Imaging techniques

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Davatzikos, C. (1996). Nonlinear registration of brain images using deformable models. In Anon (Ed.), Proceedings of the Workship on Mathematical Methods in Biomedical Image Analysis (pp. 94-103). IEEE.

Nonlinear registration of brain images using deformable models. / Davatzikos, Christos.

Proceedings of the Workship on Mathematical Methods in Biomedical Image Analysis. ed. / Anon. IEEE, 1996. p. 94-103.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Davatzikos, C 1996, Nonlinear registration of brain images using deformable models. in Anon (ed.), Proceedings of the Workship on Mathematical Methods in Biomedical Image Analysis. IEEE, pp. 94-103, Proceedings of the 1996 Workshop on Mathematical Methods in Biomedical Image Analysis, San Francisco, CA, USA, 6/21/96.
Davatzikos C. Nonlinear registration of brain images using deformable models. In Anon, editor, Proceedings of the Workship on Mathematical Methods in Biomedical Image Analysis. IEEE. 1996. p. 94-103
Davatzikos, Christos. / Nonlinear registration of brain images using deformable models. Proceedings of the Workship on Mathematical Methods in Biomedical Image Analysis. editor / Anon. IEEE, 1996. pp. 94-103
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