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Magnetic field correlation imaging
Author(s) -
Jensen Jens H.,
Chandra Ramesh,
Ramani Anita,
Lu Hanzhang,
Johnson Glyn,
Lee SangPil,
Kaczynski Kyle,
Helpern Joseph A.
Publication year - 2006
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.20907
Subject(s) - nuclear magnetic resonance , magnetic resonance imaging , imaging phantom , magnetic field , physics of magnetic resonance imaging , correlation , physics , signal (programming language) , spin echo , magnetic resonance microscopy , computer science , medicine , optics , radiology , mathematics , geometry , quantum mechanics , programming language
A magnetic resonance imaging (MRI) method is presented for estimating the magnetic field correlation (MFC) associated with magnetic field inhomogeneities (MFIs) within biological tissues. The method utilizes asymmetric spin echoes and is based on a detailed theory for the effect of MFIs on nuclear magnetic resonance (NMR) signal decay. The validity of the method is supported with results from phantom experiments at 1.5 and 3 T, and human brain images obtained at 3 T are shown to demonstrate the method's feasibility. The preliminary results suggest that MFC imaging may be useful for the quantitative assessment of iron within the brain. Magn Reson Med, 2006. © 2006 Wiley‐Liss, Inc.