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Abstract #3019

A Robust Reconstruction Method for High Resolution Multishot DWI: SPIRiT-based SYMPHONY

Zijing Dong1, Fuyixue Wang1, Xiaodong Ma1, Erpeng Dai1, Zhe Zhang1, and Hua Guo1

1Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China, People's Republic of

SYnergistic iMage reconstruction using PHase variatiOns and seNsitivitY (SYMPHONY) is a reconstruction method for multi-shot DWI which can provide high resolution diffusion weighted images. In this study, we proposed a SPIRiT-based SYMPHONY method in which a self-consistency constraint is applied instead of the conventional GRAPPA kernel to further improve the robustness of SYMPHONY. Simulation and in-vivo experiment validated the benefits of the proposed method which can improve the accuracy of reconstruction with less navigator data.

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