Iterative Progressive Length Conjugate Gradient Reconstruction in MR-PARSE
Charles G Cantrell1, Parmede Vakil1,2, Donald R Cantrell3, Yong Jeong1, Sameer A Ansari3, and Timothy J Carroll1,3
1Biomedical Engineering, Northwestern, Chicago, IL, United States, 2College of Medicine, University of Illinois, Chicago, IL, United States, 3Radiology, Northwestern, Chicago, IL, United States
We have found that performing iterative PLCG dramatically (on average 55% better) improves reconstruction quality of an MR-PARSE acquisition. Moreover, iterative PLCG has shown to be capable of
reconstruction in regions with large susceptibility artifact. Consistent frequency measurements allow us to
remove static offsets caused by air interfaces near the earholes and sinuses
leaving dynamic frequency offsets which transpose linearly to OEF. Furthermore, our approach to prevent local
minima solutions, through the use of an iterative PLCG, represents a new
approach that may improve upon many other complex reconstruction methods.
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