Rigid motion artifact reduction in CT using frequency domain analysis

Journal of X-ray Science and Technology
Yuan ZhangYunshan Sun

Abstract

It is often unrealistic to assume that the subject remains stationary during a computed tomography (CT) imaging scan. A patient rigid motion can be decomposed into a translation and a rotation around an origin. How to minimize the motion impact on image quality is important. To eliminate artifacts caused by patient rigid motion during a CT scan, this study investigated a new method based on frequency domain analysis to estimate and compensate motion impact. Motion parameters was first determined by the magnitude correlation of projections in frequency domain. Then, the estimated parameters were applied to compensate for the motion effects in the reconstruction process. Finally, this method was extended to helical CT. In fan-beam CT experiments, the simulation results showed that the proposed method was more accurate and faster on the performance of motion estimation than using Helgason-Ludwig consistency condition method (HLCC). Furthermore, the reconstructed images on both simulated and human head experiments indicated that the proposed method yielded superior results in artifact reduction. The proposed method is a new tool for patient motion compensation, with a potential for practical application. It is not only applicable t...Continue Reading

References

Apr 29, 2003·IEEE Transactions on Medical Imaging·William Scott Hoge
Oct 21, 2003·Investigative Radiology·Arne WagnerRolf Ewers
Dec 24, 2005·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Hamid Rahim SheikhGustavo de Veciana
Jun 14, 2006·IEEE Transactions on Medical Imaging·Hengyong YuGe Wang
Feb 20, 2007·IEEE Transactions on Medical Imaging·Hengyong Yu, Ge Wang
Jan 1, 1995·IEEE Transactions on Medical Imaging·G Wang, M W Vannier
Dec 17, 2009·Archives of Internal Medicine·Rebecca Smith-BindmanDiana L Miglioretti
Feb 8, 2011·Academic Radiology·Adam ChandlerChaan S Ng
Aug 17, 2012·Medical Physics·Wei Xu, Klaus Mueller
Mar 8, 2013·Medical Physics·Harald SchöndubeThomas Flohr
Jun 21, 2013·IEEE Transactions on Medical Imaging·Ghislain VaillantTobias Schaeffter
Apr 9, 2014·Proceedings of the National Academy of Sciences of the United States of America·Ling-Li ZengHesheng Liu
Jun 18, 2014·Physics in Medicine and Biology·S ReaungamornratJ H Siewerdsen
Jul 17, 2014·IEEE Transactions on Medical Imaging·Yang ChenWufan Chen
Aug 1, 2014·Journal of X-ray Science and Technology·Shuangren ZhaoKevin Yang
Sep 23, 2014·BioMed Research International·Bong Soo KimMyeng Ju Goh
Feb 13, 2015·Physics in Medicine and Biology·J-H KimR Fulton

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Citations

Mar 12, 2019·Journal of X-ray Science and Technology·Yuan ZhangYunshan Sun

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