Abstract
Statistical atlases enable the individualization of atlas information for patient specific applications such as surgical planning. In this paper, a statistical atlas comprising a point distribution model defined on the vertices of a tetrahedral mesh is registered to a subject's computed tomography scan of the human pelvis. The approach consists of a volumetric deformable registration method augmented to maintain the topology of the atlas mesh after deformation as well as incorporating the dominant three-dimensional shape modes in the atlas. Experimental results demonstrate that incorporation of the statistical shape atlas helps to stabilize the registration and improves robustness and registration accuracy.
Original language | English (US) |
---|---|
Pages (from-to) | 79-90 |
Number of pages | 12 |
Journal | Computerized Medical Imaging and Graphics |
Volume | 34 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2010 |
Keywords
- Computed tomography-CT
- Deformable image registration
- Pelvis
- Point distribution model
- Principal component analysis-PCA
- Prior shape information
- Statistical atlas
- Surgical planning
- Tetrahedral mesh
- Topology
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Radiology Nuclear Medicine and imaging
- Computer Vision and Pattern Recognition
- Health Informatics
- Computer Graphics and Computer-Aided Design