Trust Region Methods for the Estimation of a Complex Exponential Decay Model in MRI With a Single-Shot or Multi-Shot Trajectory

Joint estimation of spin density R* 2 decay and OFF-resonance frequency maps is very useful in many magnetic resonance imaging applications. The standard multi-echo approach can achieve high accuracy but requires a long acquisition time for sampling multiple k-space frames. There are many approaches...

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Bibliographic Details
Published in:	IEEE transactions on image processing Vol. 24; no. 11; pp. 3694 - 3706
Main Authors:	Chenxi Hu, Reeves, Stanley J.
Format:	Journal Article
Language:	English
Published:	United States IEEE 01.11.2015
Subjects:	Algorithms Approximation methods Brain - anatomy & histology Convergence Cost function Estimation field map estimation Humans Image Processing, Computer-Assisted - methods Image reconstruction iterative algorithm Magnetic resonance imaging Magnetic Resonance Imaging - methods Models, Statistical Phantoms, Imaging R 2 estimation Trajectory trust region method trust region method R_{2}^{\ast } estimation iterative algorithm field map estimation
ISSN:	1057-7149, 1941-0042
Online Access:	Get full text
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