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Abstract #2615

Respiratory Navigator-Triggered, Multi-Slice Turbo Spin Echo with Motion-Sensitized Driven Equilibrium Prepulse: A Novel Sequence for Black-Blood T2-Weighted Imaging of Liver

Gregory James Wilson1,2, George R. Oliveira2, Jeffrey Harold Maki, 2,3

1MR Clinical Science, Philips Healthcare, Cleveland, OH, United States; 2Radiology, University of Washington, Seattle, WA, United States; 3Radiology, Puget Sound VA HCS, Seattle, WA, United States

Black-blood (BB) T2-weighted (T2w) imaging can provide increased liver lesion conspicuity over standard bright-blood T2w imaging. The sequence evaluated here uses respiratory navigator-triggering and a motion-sensitized driven equilibrium (MSDE) pre-pulse with a multi-slice turbo spin echo (TSE) readout. This sequence provides BB T2w images with high TSE image quality and without EPI distortions. In this study, various motion-sensitizing gradient directions and strengths were evaluated.