Title
On The Complimentarity Of Sense And Grappa In Parallel Mr Imaging
Abstract
Two image reconstruction methods currently dominate parallel MR imaging: SENSE and GRAPPA. While both seek to reconstruct images from subsampled multi-channel MRI data, there exist fundamental differences between the two. In particular. SENSE reconstructs an image of the excited spin-density directly whereas GRAPPA reconstructs estimates of the fully sampled raw coil data and then combines them to obtain an image. In this work we show that these differences can be exploited such that each method can compliment the other. In the case of SENSE, which requires an estimate of the coil sensitivity map before reconstruction, one can use GRAPPA to improve the coil sensitivity estimates. Alternatively, using coil sensitivity estimates and the SENSE reconstruction equations, one can improve the GRAPPA reconstruction parameter estimation. Together, these approaches can provide higher image quality than either method alone.
Year
DOI
Venue
2006
10.1109/IEMBS.2006.259697
2006 28TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-15
Keywords
DocType
Volume
parameter estimation,sense,image reconstruction,image quality
Conference
1
ISSN
Citations 
PageRank 
1557-170X
1
0.48
References 
Authors
1
2
Name
Order
Citations
PageRank
W. Scott Hoge15912.58
Dana H Brooks221561.52