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Abstract #0465

MOCO-BUDA: motion-corrected blip-up/down acquisition with joint reconstruction for motion-robust and distortion-free diffusion MRI of brain

Xiaozhi Cao1,2,3, Congyu Liao2,3, Zijing Zhang2,4, Mary Kate Manhard2,3, Hongjian He1, Jianhui Zhong1, Berkin Bilgic2,3,5, and Kawin Setsompop2,3,5
1Center for Brain Imaging Science and Technology, Department of Biomedical Engineering, Zhejiang University, Hangzhou, China, 2Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, charlestown, MA, United States, 3Department of Radiology, Harvard Medical School, charlestown, MA, United States, 4State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, China, 5Harvard-MIT Department of Health Sciences and Technology, Cambridge, MA, United States

We proposed a motion-correction method for joint reconstruction of blip-up/down EPI acquisition (BUDA-EPI) of brain diffusion MRI. Motion parameters were estimated and incorporated into the joint parallel imaging reconstruction of the blip-up/down multi-shot data, which included B0 field maps and Hankel structured low-rank constraint. The proposed motion-corrected reconstruction approach was demonstrated in vivo to provide motion-robust reconstruction of blip-up/down multi-shot EPI diffusion data.

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