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Abstract #4016

Simultaneous Multislice Accelerated Free-Breathing Diffusion-Weighted Imaging of the Liver at 3T

Chika C Obele 1 , Christopher Glielmi 2 , Justin Ream 1 , Ankur Doshi 1 , Naomi Campbell 1,3 , Cheung Hoi Zhang 1 , James Babb 1 , Himanshu Bhat 4 , and Hersh Chandarana 1

1 Radiology, NYU Scool of Medicine and NYU Langone Medical Center, New York, NY, United States, 2 Siemens HealthCare, New York, NY, United States, 3 Radiology, Memorial Sloan Kettering, NY, United States, 4 Siemens Healthcare, Charlestown, MA, United States

Techniques that can accelerate free-breathing diffusion weighted imaging (DWI) of the liver are of interest to decrease acquisition time while maintaining image quality. One promising method is multiband excitation approach that can acquire multiple slices simultaneously, thus decreasing repetition time (TR). In current study multiband DWI with 2 fold acceleration (mb2-DWI) was shown to decrease acquisition time by 40 to 50% compared to conventional DWI (c-DWI) for liver imaging. Despite shorter acquisition time, mb2-DWI had higher scores for overall image quality compared to c-DWI with identical lesion detectability. Thus, mb2-DWI can potentially replace the conventional DWI sequence in the liver.

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