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Optical Engineering

Equiangular fan-beam computerized tomography reconstruction for a noncircular scanning locus
Author(s): Katherine Redford; Ge Wang; Michael W. Vannier
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Paper Abstract

A derivative-free, two-dimensional equiangular fan-beam reconstruction formula for a noncircular scanning locus is derived under three practical conditions. The formula contains the same terms as the traditional formula, except that the constant source-to-origin distance is replaced by the source-to-origin distance as a function of the rotation angle. The correctness of this formula is tested in numerical simulation. The potential applications of the formula include fourth-generation CT, electron-beam Ct, SPECT, and x-ray microtomography.

Paper Details

Date Published: 1 August 1999
PDF: 5 pages
Opt. Eng. 38(8) doi: 10.1117/1.602175
Published in: Optical Engineering Volume 38, Issue 8
Show Author Affiliations
Katherine Redford, University of Iowa Hospitals and Clinics (United States)
Ge Wang, Univ. of Iowa (United States)
Michael W. Vannier, Univ. of Iowa (United States)

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