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Abstract #1613

Sensitivity of Modulated Refocusing Flip Angle Single-Shot Fast Spin Echo to Impulsive Cardiac-Like Motion

Daniel V Litwiller 1 , James H Holmes 2 , Manojkumar Saranathan 3 , Andreas M Loening 3 , James F Glockner 4 , Shreyas S Vasanawala 3 , and Ersin Bayram 5

1 Global MR Applications and Workflow, GE Healthcare, Rochester, MN, United States, 2 Global MR Applications and Workflow, GE Healthcare, Madison, WI, United States, 3 Department of Radiology, Stanford University, Palo Alto, CA, United States, 4 Department of Radiology, Mayo Clinic, Rochester, MN, United States, 5 Global MR Applications and Workflow, GE Healthcare, Houston, TX, United States

Modulated refocusing flip angle single-shot fast spin echo (SSFSE) is of particular interest for pediatric and breath-held abdominal imaging. When low minimum refocusing flip angles are utilized with this technique in the presence of motion, however, as in the liver, images may suffer from signal loss due to cardiac motion. In this work, we characterize the empirical sensitivity of this modulated SSFSE technique to impulsive cardiac-like motion and validate our findings in vivo.

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