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Theoretically-exact filtered-backprojection reconstruction from real data on the line-ellipse-line trajectory
Author(s): Zijia Guo; Günter Lauritsch; Andreas Maier; Frédéric Noo
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Paper 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.

Paper Details

Date Published: 28 May 2019
PDF: 4 pages
Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110720T (28 May 2019); doi: 10.1117/12.2533655
Show Author Affiliations
Zijia Guo, Univ. of Utah (United States)
Univ. of Erlangen-Nürnberg (Germany)
Günter Lauritsch, Siemens Healthcare GmbH (Germany)
Andreas Maier, Univ. of Erlangen-Nürnberg (Germany)
Frédéric Noo, Univ. of Utah (United States)


Published in SPIE Proceedings Vol. 11072:
15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
Samuel Matej; Scott D. Metzler, Editor(s)

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