Fast magnetic resonance spectroscopic imaging (MRSI) using wavelet encoding and parallel imaging: in vitro results

Download
  1. (PDF, 376 KB)
  2. Get@NRC: Fast magnetic resonance spectroscopic imaging (MRSI) using wavelet encoding and parallel imaging: in vitro results (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.jmr.2011.03.019
AuthorSearch for: ; Search for:
TypeArticle
Journal titleJournal of Magnetic Resonance
Volume211
Issue1
Pages4561; # of pages: 17
SubjectMagnetic resonance spectroscopy imaging; Wavelet encoding; Parallel imaging
AbstractIn previous work we have shown that wavelet encoding spectroscopic imaging (WE-SI) reduces acquisition time and voxel contamination compared to the standard Chemical Shift Imaging (CSI) also known as phase encoding (PE). In this paper, we combine the wavelet encoding method with parallel imaging (WE-PI) technique to further reduce the acquisition time by the acceleration factor R, and preserve the spatial metabolite distribution. Wavelet encoding provides results with a lower signal-to-noise ratio (SNR) than the phase encoding method. Their combination with parallel imaging, introduces an intrinsic SNR reduction. The rate of SNR reduction is slower in wavelet encoding with PI than PE with parallel imaging (PE-PI). This is due to the fact that in WE-PI, the SNR reduction is a function of the acceleration factor R and the voxel number N, whereas in PE-PI it is a function of the acceleration factor R only.
Publication date
LanguageEnglish
AffiliationNRC Institute for Biodiagnostics; National Research Council Canada
Peer reviewedYes
NPARC number19727289
Export citationExport as RIS
Report a correctionReport a correction
Record identifierd019c2d7-c4cc-41ba-bdd2-a24475b97d4f
Record created2012-03-28
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)
Date modified: