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• Technical Article •
Research and realization of correction method of MRI motion artifact
HUANG Min  QIN Xing-jie  LI Qing-yuan 

DOI:10.3969/j.issn.1674-8034.2013.04.010.


[Abstract] During the process of magnetic resonance imaging, the patient motion induces motion artifacts in the reconstructed image and degrades the quality of the image. In this paper, we study the phase recovery algorithm based on minimum entropy focus criterion constraint. In order to save time and improve the correction effect, we reduce the k-space line numbers and change the original single step correction mode by automatically reducing the step in each iteration. The motion artifacts correction program is developed under the graphic user interface in Matlab environment. It shows the results of simulation and imaging experiment, which provides a reference for the development of new methods.
[Keywords] Mamnetic resonance imaging；Translational motion；Minimum entropy；Phase recovery

HUANG Min* College of Biomedical Engineering, South-Central University for Nationalities, Wuhan 430074, China

QIN Xing-jie College of Biomedical Engineering, South-Central University for Nationalities, Wuhan 430074, China

LI Qing-yuan College of Biomedical Engineering, South-Central University for Nationalities, Wuhan 430074, China

*Correspondence to: Huang M, E-mail: hmrose@mail.scuec.edu.cn

Conflicts of interest   None.

Received  2013-03-20
Accepted  2013-06-10
DOI: 10.3969/j.issn.1674-8034.2013.04.010
DOI:10.3969/j.issn.1674-8034.2013.04.010.

[1]
Weerasinghe C, Yan H. Correction of motion artifacts in MRI caused by rotations at constant angular velocity. Signal Processing, 1998, 70(2): 103-114.
[2]
Tseng YH, Hwang JN, Yuan C. Motion artifact correction of MRI via iterative inverse problem solving, in image Processing. IEEE Image Processing, 1994, 3: 871-875.
[3]
Samsonov AA, Velikina J, Jung Y, et al. POCS-enhanced correction of motion artifacts in parallel MRI. Magn Reson Med, 2010, 63(4): 1104-1110.
[4]
Hedley M, Ya HN, Rosenfetd D. An improved algorithm for 2-D translational motion artifacts correction. IEEE Trans Med Imaging, 1991, 10(4): 548-553.
[5]
陈春晓，陶华，王世杰，等. MR图像运动伪影的遗传算法校正．中国图像图形学报, 2005, 10(9): 1129-1133.
[6]
Atkinson D, Hill DL. Automatic correction of motion artifacts in magnetic resonance images using an entropy focus criterion. IEEE Trans Med Imaging, 1997, 16(6): 903-910.
[7]
邓羽，黄华．基于一种改进的相位校正算法消除MRI运动伪影．中国组织工程研究与临床康复, 2011, 15(4): 660-662.
[8]
侯正松，江贵平，王华峰，等. MR图像刚性平移运动伪影的自动逆向迭代修正．中国生物医学工程学报, 2004, 23(4): 354-358.

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