Abstract #3028

Efficient Macroscopic Motion Correction for Multi-shot DTI

zhongbiao xu¹, Yanqiu Feng¹, Wufan Chen¹, Zhigang Wu², Ha-kyu Jeong³, Wenxing Fang², Yingjie Mei^1,4, 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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