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Abstract #1588

Variable Refocusing Flip Angle Single-Shot Fast Spin Echo of the Bowel, Initial Experience

Daniel V Litwiller 1 , James F Glockner 2 , and Ersin Bayram 3

1 Global MR Applications and Workflow, GE Healthcare, Rochester, MN, United States, 2 Department of Radiology, Mayo Clinic, Rochester, MN, United States, 3 Global MR Applications and Workflow, GE Healthcare, Houston, TX, United States

Single-Shot Fast Spin Echo (SSFSE) imaging of the bowel is limited in several ways, including T2-driven image blurring, which limits effective resolution, and high SAR (especially at 3.0T), which limits repetition time and therefore acquisition speed. Here, we present initial bowel imaging results from variable refocusing flip angle SSFSE (vrfSSFSE), which demonstrates markedly improved image sharpness, resulting in improved appearance of the bowel and mesentery, features that are typically lacking in bowel imaging with conventional SSFSE using static refocusing flip angles. In addition, increased imaging speed with vrfSSFSE can be used to shorten breath-held acquisitions or to increase slice coverage.

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