Journal article
Lambda tomography with discontinuous scanning trajectories
Physics in medicine & biology, Vol.52(14), pp.4331-4344
07/21/2007
DOI: 10.1088/0031-9155/52/14/020
PMID: 17664611
Abstract
Lambda tomography (LT) is a well-known local reconstruction technology to reduce the radiation dose or accommodate a limited imaging geometry. After a theoretical analysis of the so-called Calderon operator (CO), the necessary conditions for exact LT reconstruction are presented in terms of the 2D and 3D COs. Based on our previous results on LT, a general scheme is proposed to construct exact LT formulae in terms of the 2D CO with multiple segment trajectories. Every 2D formula has a corresponding 3D cone-beam formula in the Feldkamp framework in terms of the 2D CO which was illustrated in a triple-segment case. Our simulation results verify the correctness and demonstrate the merits of the proposed scheme.
Details
- Title: Subtitle
- Lambda tomography with discontinuous scanning trajectories
- Creators
- Hengyong Yu - Virginia TechYuchuan Wei - Wake Forest UniversityYangbo Ye - University of IowaGe Wang - Wake Forest University
- Resource Type
- Journal article
- Publication Details
- Physics in medicine & biology, Vol.52(14), pp.4331-4344
- Publisher
- IOP PUBLISHING LTD
- DOI
- 10.1088/0031-9155/52/14/020
- PMID
- 17664611
- ISSN
- 0031-9155
- eISSN
- 1361-6560
- Number of pages
- 14
- Language
- English
- Date published
- 07/21/2007
- Academic Unit
- Mathematics
- Record Identifier
- 9984240880002771
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