Improvements in MR imaging of solids through gradient waveform optimization

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DOIResolve DOI: http://doi.org/10.1139/v11-022
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TypeArticle
Journal titleCanadian Journal of Chemistry
Volume89
Issue7
Pages729736; # of pages: 8
SubjectMRI; solids; gradient shape; gradient ramp; sound pressure; signal-to-noise ratio
AbstractMagnetic resonance imaging (MRI) is known to provide a useful approach for the exploration of the chemistry and dynamics of a wide range of soft condensed materials. However, its application to solids has been limited to those materials with relatively narrow resonances. The time needed to obtain an image of a solid with a given resolution and signal-to-noise ratio (SNR) is directly proportional to the line width of the resonance. For MRI to become practical for the imaging of solids it will have to rely on the development and use of MR sequences that avoid the issues raised by line broadening of the resonance. In this paper we review the latest contributions towards MR imaging of solids from our laboratory, in particular, applications using optimized gradient waveforms. Acoustic noise reduction and SNR improvement obtained with modifications of the standard single-point imaging sequence are presented and discussed using examples.
Publication date
LanguageEnglish
AffiliationNRC Institute for Biodiagnostics; National Research Council Canada
Peer reviewedYes
NPARC number19663219
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Record identifierffca476e-1149-4105-ac22-a23118f806ba
Record created2012-03-16
Record modified2016-05-09
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