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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