Resolution enhancement in MRI of laser polarized 3He by control of diffusion

Publication type:
Journal article
Metadata:
Autoren
  • L Agulles-Pedrós
  • RH Acosta
  • P Blümler
  • HW Spiess
DOI
10.1016/j.jmr.2008.12.003
ISSN
1090-7807
Ausgabe der Veröffentlichung
1
Zeitschrift
Journal of Magnetic Resonance
Sprache
en
Paginierung
56 - 62
Datum der Veröffentlichung
2009
Status
Published
Herausgeber
Elsevier BV
Herausgeber URL
http://dx.doi.org/10.1016/j.jmr.2008.12.003
Datum der Datenerfassung
2018
Titel
Resolution enhancement in MRI of laser polarized 3He by control of diffusion
Ausgabe der Zeitschrift
197

Data source: Crossref

Other metadata sources:
Abstract
Diffusion of atoms or molecules in presence of magnetic field gradients not only attenuates the NMR signal but also leads to distortions close to restricting boundaries. This phenomenon is most evident in imaging with laser polarized (LP) noble gases. Diffusion of gases can be manipulated, however, by admixing inert gases of different molecular weight. In this work we analyze the effect of mixing LP-(3)He with SF(6) on the image quality of a phantom consisting of an arrangement of capillaries with different diameters. Admixing buffer gases of higher molecular weight changes the contrast and offers a means to record images with high spatial and time resolution. Additionally we demonstrate how distortions due to edge enhancement can be reduced even for long timed MRI-sequences.
Addresses
  • Max Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
Autoren
  • L Agulles-Pedrós
  • RH Acosta
  • P Blümler
  • HW Spiess
DOI
10.1016/j.jmr.2008.12.003
eISSN
1096-0856
Externe Identifier
  • PubMed Identifier: 19128992
Open access
false
ISSN
1090-7807
Ausgabe der Veröffentlichung
1
Zeitschrift
Journal of magnetic resonance (San Diego, Calif. : 1997)
Schlüsselwörter
  • Helium
  • Gases
  • Isotopes
  • Diffusion Magnetic Resonance Imaging
  • Image Enhancement
  • Magnetic Resonance Spectroscopy
  • Lasers
  • Diffusion
Sprache
eng
Medium
Print-Electronic
Online publication date
2008
Paginierung
56 - 62
Datum der Veröffentlichung
2009
Status
Published
Datum der Datenerfassung
2009
Titel
Resolution enhancement in MRI of laser polarized 3He by control of diffusion.
Sub types
  • Research Support, Non-U.S. Gov't
  • Journal Article
Ausgabe der Zeitschrift
197

Data source: Europe PubMed Central

Abstract
Diffusion of atoms or molecules in presence of magnetic field gradients not only attenuates the NMR signal but also leads to distortions close to restricting boundaries. This phenomenon is most evident in imaging with laser polarized (LP) noble gases. Diffusion of gases can be manipulated, however, by admixing inert gases of different molecular weight. In this work we analyze the effect of mixing LP-(3)He with SF(6) on the image quality of a phantom consisting of an arrangement of capillaries with different diameters. Admixing buffer gases of higher molecular weight changes the contrast and offers a means to record images with high spatial and time resolution. Additionally we demonstrate how distortions due to edge enhancement can be reduced even for long timed MRI-sequences.
Date of acceptance
2008
Autoren
  • L Agulles-Pedrós
  • RH Acosta
  • P Blümler
  • HW Spiess
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/19128992
DOI
10.1016/j.jmr.2008.12.003
eISSN
1096-0856
Ausgabe der Veröffentlichung
1
Zeitschrift
J Magn Reson
Schlüsselwörter
  • Diffusion
  • Diffusion Magnetic Resonance Imaging
  • Gases
  • Helium
  • Image Enhancement
  • Isotopes
  • Lasers
  • Magnetic Resonance Spectroscopy
Sprache
eng
Country
United States
Paginierung
56 - 62
PII
S1090-7807(08)00396-0
Datum der Veröffentlichung
2009
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2009
Titel
Resolution enhancement in MRI of laser polarized 3He by control of diffusion.
Sub types
  • Journal Article
  • Research Support, Non-U.S. Gov't
Ausgabe der Zeitschrift
197

Data source: PubMed

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