Conference proceeding
Investigation of helix-saddle trajectories for cone-beam CT
Proceedings of SPIE, Vol.7078(1), pp.70780I-70780I-10
Developments in X-Ray Tomography VI
08/28/2008
DOI: 10.1117/12.793728
Abstract
In this paper, a hybrid helix-saddle trajectory scanning mode is proposed for bolus-chasing CT angiography. By combining the conventional helical trajectory and saddle trajectory appropriately, an optimal curve can be obtained with a capability of localized volumetric imaging at desirable locations. In this context, a condition for the PI-line existence is determined. Then, both filtered-backprojection (FBP), backprojection filtration (BPF) and reduced-scan FBP algorithms are developed. Numerical studies with the 3D Shepp-Logan phantom support the validity and merits of the proposed trajectories and associated algorithms.
Details
- Title: Subtitle
- Investigation of helix-saddle trajectories for cone-beam CT
- Creators
- Yang Lu - Shanghai Jiao Tong UniversityJun Zhao - Shanghai Jiao Tong UniversityErwei Bai - University of IowaGe Wang - Virginia Tech
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.7078(1), pp.70780I-70780I-10
- Conference
- Developments in X-Ray Tomography VI
- DOI
- 10.1117/12.793728
- ISSN
- 0277-786X
- Language
- English
- Date published
- 08/28/2008
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984197180402771
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