Abstract #0524

3D Multi-band Interleaved DW-EPI with 3D Phase Correction

Hing-Chiu Chang¹, Edward S. Hui^1,2, Xiaoxi Liu¹, and Nan-kuei Chen^3,4

¹Department of Diagnostic Radiology, The University of Hong Kong, Hong Kong, Hong Kong, ²The State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong, ³Department of Biomedical Engineering, University of Arizona, Tucson, AZ, United States, ⁴Brain Imaging and Analysis Center, Duke University Medical Center, Durham, NC, United States

The optimal SNR efficiency of 3D multi-slab multi-shot DWI acquisition can be enabled by using a TR range of 1-2s. However, due to the low feasible slab thickness, the multi-slab acquisition can only achieve limited brain coverage when using a short TR. In this study, we first develop a 3D multi-band (MB) iDW-EPI sequence with MB-EVI-based navigator to increase brain coverage when using optimal TR. Second, we extend 3D-MUSER algorithm, which is proposed in another study, to reconstruct 3D-MB-iDW-EPI data with 3D phase correction. Our preliminary result demonstrates the feasibility of 3D MB DWI with 3D phase correction.

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