Abstract #3304

Accelerating 2D Chemical Shift Encoded MRI with Simultaneous Multislice Imaging

Nathan Tibbitts Roberts^1,2, Ruvini Navaratna^1,3, Diego Hernando^1,3, and Scott B Reeder^1,3,4,5,6

¹Radiology, University of Wisconsin - Madison, Madison, WI, United States, ²Electrical and Computer Engineering, University of Wisconsin - Madison, Madison, WI, United States, ³Medical Physics, University of Wisconsin - Madison, Madison, WI, United States, ⁴Biomedical Engineering, University of Wisconsin - Madison, Madison, WI, United States, ⁵Medicine, University of Wisconsin - Madison, Madison, WI, United States, ⁶Emergency Medicine, University of Wisconsin - Madison, Madison, WI, United States

Chemical shift-encoded (CSE) MRI allows for measurement of important tissue parameters with established and emerging quantitative MRI applications, including proton density fat fraction (PDFF) and R2*. Respiratory and bulk patient movement can affect the accuracy and precision of CSE-MRI measurements, which makes rapid and motion robust imaging of high clinical value. This work demonstrates the combination of simultaneous multislice (SMS) imaging to accelerate 2D motion robust CSE-MRI acquisitions. Results with computer simulations and in vivo experiments confirm the feasibility of combining these two techniques to achieve rapid, whole-liver, motion robust quantitative tissue characterization.

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