Abstract #0465

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

Xiaozhi Cao^1,2,3, Congyu Liao^2,3, Zijing Zhang^2,4, Mary Kate Manhard^2,3, Hongjian He¹, Jianhui Zhong¹, Berkin Bilgic^2,3,5, and Kawin Setsompop^2,3,5

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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