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Abstract #1606

Comparison of Different Motion Correction Methods for PROPELLER MRI

Yilong Liu 1 , Zhe Liu 2 , Zhe Zhang 1 , Huailing Zhang 3 , and Hua Guo 1

1 Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, Beijing, China, 2 Department of Biomedical Engineering, Cornell University, New York, United States, 3 School of Information Engineering, Guangdong Medical College, Guangdong, China

Proper reference for motion estimation is critical for accurate and robust motion correction in PROPELLER MRI. In this work, single blade reference (SBR), combined blade reference (CBR), grouped blade reference (GBR) and Pipe et als latest revised method in which no blade reference is required (NBR) are implemented and compared. Simulation results show that all methods above is accurate enough to generate a good image. For some special cases of in vivo imaging, SBR, CBR and GBR may fail to converge, while NBR still maintains relatively good performance, which indicates NBR is more robust.

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