Journal article
Practical cone-beam lambda tomography
Medical physics (Lancaster), Vol.33(10), pp.3640-3646
09/14/2006
DOI: 10.1118/1.2348767
PMID: 17089830
Abstract
As a potentially important technology for medical x-ray computed tomography (CT), lambda tomography (LT) is to reconstruct a gradient-like image only from local projection data. Based on our recently derived exact fan-beam LT formula, [
H. Y. Gu
and
G. Wang
,
Int. J. Biomed. Imaging
2006
(
1
),
1-9
(
2006
)
] here we propose a practical cone-beam LT algorithm for LT reconstruction from local data collected along an arbitrary smooth three-dimensional curve. A key step in our algorithm is to determine an appropriate vector perpendicular to the line connecting the x-ray source and an image point. The algorithm is implemented assuming an equispatial planar detector and a nonstandard spiral trajectory. The numerical simulation results demonstrate the merits of our method.
Details
- Title: Subtitle
- Practical cone-beam lambda tomography
- Creators
- Hengyong Yu - University of IowaYangbo Ye - University of IowaGe Wang - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Medical physics (Lancaster), Vol.33(10), pp.3640-3646
- Publisher
- American Association of Physicists in Medicine
- DOI
- 10.1118/1.2348767
- PMID
- 17089830
- ISSN
- 0094-2405
- eISSN
- 2473-4209
- Grant note
- EB002667 / NIH EB00428 / NIH
- Date published
- 09/14/2006
- Academic Unit
- Mathematics
- Record Identifier
- 9984240769302771
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