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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