File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

조형준

Cho, Hyungjoon
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Acceleration of multi-dimensional propagator measurements with compressed sensing

Author(s)
Paulsen, Jeffrey L.Cho, HyungjoonCho, GyunggooSong, Yi-Qiao
Issued Date
2011-12
DOI
10.1016/j.jmr.2011.08.025
URI
https://scholarworks.unist.ac.kr/handle/201301/3010
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=80055086641
Citation
JOURNAL OF MAGNETIC RESONANCE, v.213, no.1, pp.166 - 170
Abstract
NMR can probe the microstructures of anisotropic materials such as liquid crystals, stretched polymers and biological tissues through measurement of the diffusion propagator, where internal structures are indicated by restricted diffusion. Multi-dimensional measurements can probe the microscopic anisotropy, but full sampling can then quickly become prohibitively time consuming. However, for incompletely sampled data, compressed sensing is an effective reconstruction technique to enable accelerated acquisition. We demonstrate that with a compressed sensing scheme, one can greatly reduce the sampling and the experimental time with minimal effect on the reconstruction of the diffusion propagator with an example of anisotropic diffusion. We compare full sampling down to 64x sub-sampling for the 2D propagator measurement and reduce the acquisition time for the 3D experiment by a factor of 32 from similar to 80 days to similar to 2.5 days.
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
ISSN
1090-7807
Keyword (Author)
NMRDiffusionCompressed sensingPropagator2D and 3D diffusion propagator
Keyword
ANISOTROPIC SELF-DIFFUSIONFIELD GRADIENTPOROUS-MEDIASPIN-ECHOPGSE NMRAPPARENT DIFFUSIONTENSORDIFFRACTIONMRI

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.