Abstract
A fast reconstruction algorithm for three-dimensional (3-D) positron emission tomography (PET) has been developed by the use of Fourier inversion of rebinned plane integrals (FIPI). The FIPI algorithm rebins 3-D PET data into plane integrals (3-D Radon transforms) and then reconstructs 3-D images by Fourier inversion of the plane integrals. The algorithm was quantitatively evaluated by the use of simulated as well as measured data, and its results were compared to those of two other algorithms: 2-D filtered-backprojection (FBP) and 3-D reprojection. The results indicate that the three algorithms produce images with good and comparable resolution, but the two 3-D PET algorithms yield images with significantly better statistics than does the 2-D FBP algorithm. The results further show that our FIPI algorithm is five times faster than the widely used reprojection algorithm.
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Wu, C., Ordonez, C.E., Chen, CT. (1996). FIPI: Fast 3-D PET Reconstruction by Fourier Inversion of Rebinned Plane Integrals. In: Grangeat, P., Amans, JL. (eds) Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine. Computational Imaging and Vision, vol 4. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8749-5_20
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DOI: https://doi.org/10.1007/978-94-015-8749-5_20
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