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Abstract #0947

Free-breathing Artifact-free Liver Imaging at 3T Incorporating Phase-cycled TrueFISP and Motion Correction

Xiaoming Bi 1 , Yutaka Natsuaki 1 , Kevin Johnson 2 , and Gerhard Laub 3

1 Siemens Healthcare, Los Angeles, CA, United States, 2 Siemens Healthcare, Tucson, AZ, United States, 3 Siemens Healthcare, San Francisco, CA, United States

TrueFISP sequence allows fast liver imaging at 1.5T with good image quality. Its application at 3T remains challenging due to increased banding artifacts originating from phase dispersion. In this work a robust free-breathing liver imaging method was developed using TrueFISP sequence by incorporating multiple phase-cycled acquisitions and non-rigid motion correction before averaging. Protocol was optimized from numerical simulation and validated from in-vivo studies. Using the proposed method, high spatial resolution, high blood-liver contrast, artifact-free liver images were acquired at 3T under free breathing.

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