Theoretically-exact filtered-backprojection reconstruction from real data on the line-ellipse-line trajectory

Zijia Guo; Günter Lauritsch; Andreas Maier; Frédéric Noo

doi:10.1117/12.2533655

28 May 2019 Theoretically-exact filtered-backprojection reconstruction from real data on the line-ellipse-line trajectory

Zijia Guo, Günter Lauritsch, Andreas Maier, Frédéric Noo

Author Affiliations +

Proceedings Volume 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine; 110720T (2019) https://doi.org/10.1117/12.2533655
Event: Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 2019, Philadelphia, United States

Abstract

C-arm CT imaging can be improved in terms of axial coverage and cone-beam artifacts using advanced data acquisition geometries such as the extend line-ellipse-line trajectory. Previously, we showed that such a geometry can be robustly implemented on a clinical system. Here, we demonstrate that imperfections in the trajectory realization can be addressed so as to achieve accurate high contrast imaging with a theoretical-exact filtered- backprojection algorithm. The performance of the proposed algorithm is evaluated using the FORBILD head phantom as well as real data of an anthropomorphic head phantom.

Citation Download Citation

Zijia Guo, Günter Lauritsch, Andreas Maier, and Frédéric Noo "Theoretically-exact filtered-backprojection reconstruction from real data on the line-ellipse-line trajectory", Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110720T (28 May 2019); https://doi.org/10.1117/12.2533655

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