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Projection-slice theorem
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== Extension to fan beam or cone-beam CT == The projection-slice theorem is suitable for CT image reconstruction with parallel beam projections. It does not directly apply to fanbeam or conebeam CT. The theorem was extended to fan-beam and conebeam CT image reconstruction by Shuang-ren Zhao in 1995.<ref name="ZhaoFSliceThoerem">{{cite book |author = Zhao S.R. and H.Halling |title = 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference Record |chapter = A new Fourier method for fan beam reconstruction |volume = 2 |year = 1995 |pages = 1287β91 |doi = 10.1109/NSSMIC.1995.510494 |isbn = 978-0-7803-3180-8 |s2cid = 60933220 }}</ref>
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