Fuyixue Wang1, Zijing Dong1, Xiaodong Ma1, Erpeng Dai1, Zhe Zhang1, and Hua Guo1
Recently, several techniques
have been developed to be capable of correcting shot-to-shot phase variations of multi-shot acquisition in order to obtain
diffusion images with high spatial resolution. However, longer acquisition time
of multi-shot EPI makes these methods more sensitive to bulk motion. In this
work, we developed a novel k-space based motion corrected reconstruction method
for 2D navigated multi-shot DWI. Motion simulations and in-vivo head motion
experiments validated the effectiveness of the proposed method, which can
remove the ghosting artifacts from minuscule motion and the blurring from bulk
motion.
