A Method for the Three Dimensional Statistical Shape Analysis of the Bony Orbit

Abstract

2D CT or CBCT (Cone Beam CT) reconstructions are routinely used for the assessment and treatment of orbital fractures and deformities. Routine 3D rendering of such image data is unreliable due to the conjunction of the so called partial volume effects during imaging and the very thin nature of the orbital walls. However, 3D CT data have the potential to improve scientific shape analysis and radiological diagnostics as well as surgical planning and treatment. To be able to generate a precise 3D model of the orbit, manual or semi-automatic segmentation tools have to be employed. Automatic 3D reconstruction of the orbit would make 3D models more applicable for tasks such as generating virtual templates or for optimizing the shape of orbital implants. We adapted a method for the 3D statistical assessment of normal orbital shape and its variability to accomplish automatic 3D reconstruction.

Publication
Proc. Computer Aided Surgery around the Head (CAS-H) (W. Freysinger et al., eds.), Pro Business Verlag, pp. 94-97, 2007

See also this article from the AO Foundation, New Products Brochure 2/2006.

Hans Lamecker
Hans Lamecker
Managing Director

Advancing 3D analysis, planning, design and manufacturing using innovative computational methodologies and tools.