Journal article
A backprojection-filtration algorithm for nonstandard spiral cone-beam CT with an n-PI-window
Physics in medicine & biology, Vol.50(9), pp.2099-2111
05/07/2005
DOI: 10.1088/0031-9155/50/9/012
PMID: 15843739
Abstract
For applications in bolus-chasing computed tomography (CT) angiography and electron-beam micro-CT, the backprojection-filtration (BPF) formula developed by Zou and Pan was recently generalized by Ye et al to reconstruct images from cone-beam data collected along a rather flexible scanning locus, including a nonstandard spiral. A major implication of the generalized BPF formula is that it can be applied for n-PI-window-based reconstruction in the nonstandard spiral scanning case. In this paper, we design an n-PI-window-based BPF algorithm, and report the numerical simulation results with the 3D Shepp-Logan phantom and Defrise disk phantom. The proposed BPF algorithm consists of three steps: cone-beam data differentiation, weighted backprojection and inverse Hilbert filtration. Our simulated results demonstrate the feasibility and merits of the proposed algorithm.
Details
- Title: Subtitle
- A backprojection-filtration algorithm for nonstandard spiral cone-beam CT with an n-PI-window
- Creators
- Hengyong Yu - University of IowaYangbo Ye - University of IowaShiying Zhao - University of IowaGe Wang - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physics in medicine & biology, Vol.50(9), pp.2099-2111
- DOI
- 10.1088/0031-9155/50/9/012
- PMID
- 15843739
- ISSN
- 0031-9155
- eISSN
- 1361-6560
- Grant note
- EB002667 / NIBIB NIH HHS EB004287 / NIBIB NIH HHS
- Language
- English
- Date published
- 05/07/2005
- Academic Unit
- Mathematics
- Record Identifier
- 9984240871202771
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