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Abstract #3622

kp-GRAPPA: A self-calibrated reconstruction scheme for 3D multi-phase respiratory cine

Cihat Eldeniz 1 , Wolfgang Rehwald 2 , Brian Dale 3 , Yasheng Chen 1 , and Hongyu An 1

1 University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, 2 Siemens Healthcare, Malvern, PA, United States, 3 Siemens Healthcare, Cary, NC, United States

One key objective for MR/PET motion correction is to obtain 3D MRI images at multiple respiratory phases in order to derive 3D motion fields. In this study, we developed a reconstruction method that can yield multiple 3D respiratory phase images during free breathing. This method takes advantage of the redundant information provided by multiple coils and the neighboring respiratory phases to fill out the missing partitions. Since the reconstruction is performed in the k-vs-phase space, the proposed method is named as kp-GRAPPA.

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