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Magn Reson Imaging. 2009 Jan;27(1):137-41. doi: 10.1016/j.mri.2008.05.005. Epub 2008 Jun 25.

A nonlinear regularization strategy for GRAPPA calibration.

Author information

1
Department of Radiology, University of California San Diego, San Diego, CA 92103-8226, USA. mbydder@ucsd.edu

Abstract

A regularization strategy is described for generalized autocalibrating partially parallel acquisition (GRAPPA) that allows successful calibration using a small number of autocalibration signals (ACS). The approach requires certain nonlinear relationships between the GRAPPA coefficients to be satisfied, which increases the redundancy so that fewer ACS need to be acquired.

PMID:
18583080
DOI:
10.1016/j.mri.2008.05.005
[Indexed for MEDLINE]

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