Chinese Journal of Magnetic Resonance >
Motion Artifacts Correction in MRI with Navigator Echo Combined with Compressed Sensing
Received date: 2014-08-28
Revised date: 2015-07-23
Online published: 2015-09-05
Supported by
国家自然科学基金资助项目(81271533)
In MRI, rigid-body motion with limited amplitude can be tracked effectively by using navigator echo, and then corrected with the information provided by the navigator echo. However, tracking and correction of large and/or non-rigid motion artifact by means of navigator echo could be problematic. Images with a sparse representation in a given domain can be accurately reconstructed from undersampled datasets by using nonlinear reconstruction algorithms, such as compressed sensing. In this study, we developed an imaging technique using pseudo-random k-space trajectory for acquisition combined with motion tracking by navigator echo. After discarding the motion corrupted lines in k-space, the randomly undersampled dataset was reconstructed using compressed sensing. Experimental results demonstrated that good image quality can be obtained with this technique even in the presence of large non-rigid motions.
Key words： MRI; motion artifacts; navigator echo; compressed sensing
DONG Fang , WANG Qian-feng , ZHENG Hui , LI Zhi-ming , YANG Guang , LI Jian-qi* . Motion Artifacts Correction in MRI with Navigator Echo Combined with Compressed Sensing[J]. Chinese Journal of Magnetic Resonance, 2015 , 32(3) : 419 -429 . DOI: 10.11938/cjmr20150303
[1] Miller K L, Pauly J M. Nonlinear phase correction for navigated diffusion imaging[J]. Magn Reson Med, 2003, 50(2): 343－353.
[2] Mori S, Van Zijl P C. A motion correction scheme by twin-echo navigation for diffusion-weighted magnetic resonance imaging with multiple RF echo acquisition[J]. Magn Reson Med, 1998, 40(4): 511－516.
[3] Fu Z W, Wang Y, Grimm R C, et al. Orbital navigator echoes for motion measurements in magnetic resonance imaging[J]. Magn Reson Med, 1995, 34(5): 746－753.
[4] Hu X, Kim S G. Reduction of signal fluctuation in functional MRI using navigator echoes[J]. Magn Reson Med, 1994, 31(5): 495－503.
[5] Wang Qian-feng(王前锋), Li Jian-qi(李建奇), Wu Dong-mei(吴东梅), et al. Implementation of high resolution diffusion weighted imaging of small animal in clinical MRI system(小动物高分辨扩散加权成像在临床 MRI 上的实现)[J]. Chinese J Magn Reson(波谱学杂志), 2012, 29(3): 372－378.
[6] Dong Fang(董芳), Pei Meng-chao(裴梦超), Wang Qian-feng(王前锋), et al. Gradient echo imaging of the human brain: respiratory induced artifacts and navigator echo correction(颅脑梯度回波成像：呼吸伪影和导航回波矫正)[J]. Chinese J Magn Reson(波谱学杂志), 2014, 31(3): 321－330.
[7] van der Kouwe A J, Benner T, Dale A M. Real-time rigid body motion correction and shimming using cloverleaf navigators[J]. Magn Reson Med, 2006, 56(5): 1 019－1 032.
[8] Anderson A W, Gore J G. Analysis and correction of motion artifacts in diffusion-weighted imaging[J]. Magn Reson Med, 1994, 32(2): 379－387.
[9] Donoho D L, Compressed sensing[J]. IEEE T Inform Theor, 2006, 52(4): 1 289－1 306.
[10] Candès E, Romberg J. Sparsity and incoherence in compressive sampling[J]. Inverse Prob, 2007, 23(3): 969－985.
[11] Candès E, Wakin M. An introduction to compressive sampling[J]. IEEE Signal Proc Mag, 2008, 25(2): 21－30.
[12] Lustig M, Donoho D, Pauly J M. Sparse MRI: The application of compressed sensing for rapid MR imaging[J]. Magn Reson Med, 2007, 58(6): 1 182－1 195.
[13] Lustig M, Donoho D L, Santos J M, et al. Compressed sensing MRI[J]. IEEE Signal Proc Mag, 2008, 25(2): 72－78.
[14] Gao Ming-sheng(高明生), Xie Hai-bin(谢海滨), Yan Xu(严序), et al. Selective dual-direction sequenential compressed sensing for dynamic MR imaging(用于动态磁共振成像的选择性双向顺序压缩感知重建)[J]. Chinese J Magn Reson(波谱学杂志), 2013, 30(2): 194－203.
[15] Liang D, DiBella E V R, Chen R R, et al. K-t ISD: Dynamic cardiac MR imaging using compressed sensing with iterative support detection[J]. Magn Reson Med, 2012, 68(1): 41－53.
[16] Barral J K, Nishimura D G. Compressed Sensing for Motion Artifact Reduction[C]. Proc Intl Soc Mag Reson Med, 2009, 17(4): 4 593.
[17] Haldar J P, Hernando D, Liang Z P. Compressed-sensing MRI with random encoding[J]. IEEE T Inform Theor, 2011, 30(4): 893－903.
/
| 〈 |
|
〉 |