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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