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Proceedings Paper

Evaluation of an adaptive filtering algorithm for CT cardiac imaging with EKG modulated tube current
Author(s): Jianying Li; Jiang Hsieh; Kelly Mohr; Darin Okerlund
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Paper Abstract

We have developed an adaptive filtering algorithm for cardiac CT scans with EKG-modulated tube current to optimize resolution and noise for different cardiac phases and to provide safety net for cases where end-systole phase is used for coronary imaging. This algorithm has been evaluated using patient cardiac CT scans where lower tube currents are used for the systolic phases. In this paper, we present the evaluation results. The results demonstrated that with the use of the proposed algorithm, we could improve image quality for all cardiac phases, while providing greater noise and streak artifact reduction for systole phases where lower CT dose were used.

Paper Details

Date Published: 20 April 2005
PDF: 4 pages
Proc. SPIE 5745, Medical Imaging 2005: Physics of Medical Imaging, (20 April 2005); doi: 10.1117/12.595306
Show Author Affiliations
Jianying Li, GE Healthcare Technologies (United States)
Jiang Hsieh, GE Healthcare Technologies (United States)
Kelly Mohr, GE Healthcare Technologies (United States)
Darin Okerlund, GE Healthcare Technologies (United States)

Published in SPIE Proceedings Vol. 5745:
Medical Imaging 2005: Physics of Medical Imaging
Michael J. Flynn, Editor(s)

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