Green’s one-step-late algorithm dose not work for SPECT with attenuation correction

Larry Zeng

doi:10.1117/12.2534946

28 May 2019 Green’s one-step-late algorithm dose not work for SPECT with attenuation correction

Larry Zeng

Proceedings Volume 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine; 110722A (2019) https://doi.org/10.1117/12.2534946
Event: Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 2019, Philadelphia, United States

Abstract

Green’s one-step-late (OSL) algorithm is a popular image reconstruction algorithm in emission data tomography, in spite of its convergence issues. One drawback of Green’s algorithm is that the algorithm exhibits non-stationary regularization when the algorithm’s projector and backprojector model the attenuation effects in single photon emission computed tomography (SPECT). This paper suggests a remedy to improve Green’s OSL algorithm so that stationary regularization can be obtained.

Citation Download Citation

Larry Zeng "Green’s one-step-late algorithm dose not work for SPECT with attenuation correction", Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110722A (28 May 2019); https://doi.org/10.1117/12.2534946

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