Magnetic resonance imaging in nonlinear fields with nonlinear reconstruction

Tieng, Quang M. and Vegh, Viktor (2011) Magnetic resonance imaging in nonlinear fields with nonlinear reconstruction. Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering, 39B 3: 128-140. doi:10.1002/cmr.b.20200


Author Tieng, Quang M.
Vegh, Viktor
Title Magnetic resonance imaging in nonlinear fields with nonlinear reconstruction
Journal name Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering   Check publisher's open access policy
ISSN 1552-5031
1552-504X
Publication date 2011-08
Sub-type Article (original research)
DOI 10.1002/cmr.b.20200
Volume 39B
Issue 3
Start page 128
End page 140
Total pages 13
Place of publication Hoboken, NJ, U.S.A.
Publisher John Wiley & Sons
Collection year 2012
Language eng
Abstract Imaging in the presence of nonlinear static and gradient magnetic fields is outlined. Analytic expressions are provided for the signal obtained using specific magnetic resonance imaging (MRI) sequences with the addition of field nonlinearities. We show that using nonlinear Fourier transform image reconstruction, high-quality images can be obtained for the case when the static magnetic field has large peak-to-peak error, and the gradient field exhibits variations beyond currently acceptable levels over the imaging field-of-view. Our results show that MRI can be performed in nonlinear magnetic fields, provided that a versatile technique is used to reconstruct the images.
Keyword Nonlinear magnetic field
Distortion correction
Nonlinear Fourier transform
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
Centre for Advanced Imaging Publications
 
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Created: Wed, 07 Sep 2011, 14:24:50 EST by Sandrine Ducrot on behalf of Centre for Advanced Imaging