RLS-GRAPPA: Reconstructing Parallel MRI data with Adaptive Filters

W. S. Hoge, Fernando Gallego, Zhikui Xiao, Dana H. Brooks
Proc of 2008 IEEE Intl Symp on Biomedical Imaging (ISBI08)
Pages 1537-1540
May, 2008

Download full paper

Abstract

GRAPPA is one of the predominant methods used to reconstruct accelerated parallel MRI data. In has been shown previously that spatially varying the GRAPPA reconstruction coefficients can be advantageous. A significant problem with these approaches, however, is an increase in computation time due to an increase in the number of linear system solves needed. Here, we leverage the fact that these systems vary slowly over the coordinate space and employ recursive adaptive filters in place of explicit system solves. This approach produces high quality spatially variant GRAPPA reconstructions with a computation time comparable to standard GRAPPA. %%%%%%%%%%%%%%%%% lmi.bib, 2007 %%%%%%%%%%%%%%%%%%%%%%

Reference

Hoge WS, Gallego F, Xiao Z, Brooks DH. RLS-GRAPPA: Reconstructing parallel MRI data with adaptive filters. In Proc of 2008 IEEE Intl Symp on Biomedical Imaging (ISBI08). Paris, France, 2008;1537-1540.

Bibtex entry

@InProceedings{hoge:isbi08,
  author         = {Hoge, W. Scott and Gallego, Fernando and Xiao, Zhikui and  
                   Brooks, Dana H.},                                           
  title          = {{RLS-GRAPPA}: Reconstructing Parallel {MRI} data with      
                   Adaptive Filters},                                          
  booktitle      = {Proc of 2008 IEEE Intl Symp on  Biomedical Imaging         
                   (ISBI08)},                                                  
  pages          = {1537-1540},                                                
  year           = 2008,                                                       
  address        = {Paris, France},                                            
  month          = {May}
}

Grants

NIH U41-RR019703

Copyright Information

© IEEE-ISBI08 Copyright 2008 IEEE. Published in the 2007 International Symposium on Biomedical Imaging: From Nano to Macro (ISBI 2008), May 14-17, 2008 in Paris, France. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works, must be obtained from the IEEE. Contact: Manager, Copyrights and Permissions / IEEE Service Center / 445 Hoes Lane / P.O. Box 1331 / Piscataway, NJ 08855-1331, USA. Telephone: + Intl. 908-562-3966.