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Proceedings Paper

Truncation artifacts caused by the patient table in polyenergetic statistical reconstruction on real C-arm CT data
Author(s): Richard N.K. Bismark; Oliver Beuing M.D.; Georg Rose
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Paper Abstract

In this work, we applied the polyenergetic statistical reconstruction (PSR) technique by A. Elbakri and J. A. Fessler in order to reduce beam hardening artifacts in C-arm CT data. Astonishingly, the corrections were strongly disturbed by truncation artifacts caused by the patient table. Such truncation artifacts are typically invisible with other reconstruction methods. Our findings suggest that this is due to the mathematical structure of the update step in the reconstruction algorithm. We propose two solutions—without changing the actual PSR algorithm—that help reduce the table-induced truncation artifacts in PSR and demonstrate their viability on clinical data sets.

Paper Details

Date Published: 28 May 2019
PDF: 5 pages
Proc. SPIE 11072, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 110722G (28 May 2019);
Show Author Affiliations
Richard N.K. Bismark, Univ. of Magdeburg (Germany)
Oliver Beuing M.D., Univ. Hospital Magdeburg (Germany)
Georg Rose, Univ. of Magdeburg (Germany)


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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