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Proceedings Paper

Improved wedge scatter correction for multi-slice CT system
Author(s): Yang Wang; Karl Stierstorfer; Martin Petersilka; Yi Tian
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Paper Abstract

In modern multi-slice CT systems, bowtie shape wedge filter is widely used for optimizing patient received radiation dose distribution. Since wedge filter is usually fixed in the path of X-ray, the induced scatter radiation could give impact on image quality under certain cases. In order to compensate this extra scatter radiation and improve the image quality, we introduced a wedge scatter correction algorithm integrated in the raw data pre-processing workflow. After the algorithm is implemented on our latest CT systems, the improvement can be seen from both water phantom images and clinical patient images.

Paper Details

Date Published: 1 March 2019
PDF: 7 pages
Proc. SPIE 10948, Medical Imaging 2019: Physics of Medical Imaging, 109482B (1 March 2019); doi: 10.1117/12.2511910
Show Author Affiliations
Yang Wang, Siemens Shanghai Medical Equipment Ltd. (China)
Karl Stierstorfer, Siemens Healthcare GmbH (Germany)
Martin Petersilka, Siemens Healthcare GmbH (Germany)
Yi Tian, Siemens Shanghai Medical Equipment Ltd. (China)

Published in SPIE Proceedings Vol. 10948:
Medical Imaging 2019: Physics of Medical Imaging
Taly Gilat Schmidt; Guang-Hong Chen; Hilde Bosmans, Editor(s)

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