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Abstract #3028

Efficient Macroscopic Motion Correction for Multi-shot DTI

zhongbiao xu1, Yanqiu Feng1, Wufan Chen1, Zhigang Wu2, Ha-kyu Jeong3, Wenxing Fang2, Yingjie Mei1,4, Li Guo1, and Feng Huang2

1School of Biomedical Engineering and Guangdong Provincial Key Laboratory of Medical Image Processing, Southern Medical University, Guangzhou, China, People's Republic of, 2Philips Healthcare (Suzhou), Suzhou, China, People's Republic of, 3Philips Korea, Seoul, Korea, Republic of, 4Philips Healthcare, Guangzhou, China, People's Republic of

Though cMUSE proposed by our group tackles the pixels mismatch of macroscopic motion in multi-shot EPI by clustering and registration, it neglects altered gradient directions. In this work, we treat motion induced variations in gradient direction as addtional diffusion direction(s). The proposed method simply and effectively solves the gradient direction alternation due to macroscopic motion in multi-shot DTI.

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