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000000544 0247_ $$2DOI$$a10.1016/j.jmr.2008.12.003
000000544 0247_ $$2WOS$$aWOS:000263987500009
000000544 037__ $$aPreJuSER-544
000000544 041__ $$aeng
000000544 082__ $$a550
000000544 084__ $$2WoS$$aBiochemical Research Methods
000000544 084__ $$2WoS$$aPhysics, Atomic, Molecular & Chemical
000000544 084__ $$2WoS$$aSpectroscopy
000000544 1001_ $$0P:(DE-HGF)0$$aAgulles-Pedrós, L.$$b0
000000544 245__ $$aResolution enhancement in MRI of laser polarized 3He by control of diffusion
000000544 260__ $$aAmsterdam [u.a.]$$bElsevier$$c2009
000000544 300__ $$a56 - 62
000000544 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000000544 3367_ $$2DRIVER$$aarticle
000000544 440_0 $$09881$$aJournal of Magnetic Resonance$$v197$$x1090-7807$$y1
000000544 500__ $$aThe authors want to thank Manfred Hehn and Hanspeter Raich for their help in the design and construction of the gas handling system at the MPI-P and jorg Schmiecleskarnp for the <SUP>3</SUP>He hyperpolarization. Financial support by DFG (Forschergruppe "Bildgestatzte zeitliche und regionale Analyse der Ventilations - Peifusionsverhdltnisse in der Lunge", grant # FOR 474) and a special grant of the Max Planck society made this work possible. Finally, we want to acknowledge the Partner Group for NMR Spectroscopy with High Spin Polarization FaMAF-MPIP.
000000544 520__ $$aDiffusion of atoms or molecules in presence of magnetic field gradients not only attenuates the NMR signal but also leads to distortions close to restricting boundaries. This phenomenon is most evident in imaging with laser polarized (LP) noble gases. Diffusion of gases can be manipulated, however, by admixing inert gases of different molecular weight. In this work we analyze the effect of mixing LP-(3)He with SF(6) on the image quality of a phantom consisting of an arrangement of capillaries with different diameters. Admixing buffer gases of higher molecular weight changes the contrast and offers a means to record images with high spatial and time resolution. Additionally we demonstrate how distortions due to edge enhancement can be reduced even for long timed MRI-sequences.
000000544 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000000544 588__ $$aDataset connected to Web of Science, Pubmed
000000544 65320 $$2Author$$aGas MRI
000000544 65320 $$2Author$$aRestricted diffusion
000000544 65320 $$2Author$$aEdge enhancement
000000544 65320 $$2Author$$aMotional averaging
000000544 65320 $$2Author$$aContrast
000000544 65320 $$2Author$$aHyperpolarized gases
000000544 650_2 $$2MeSH$$aDiffusion
000000544 650_2 $$2MeSH$$aDiffusion Magnetic Resonance Imaging: methods
000000544 650_2 $$2MeSH$$aGases: chemistry
000000544 650_2 $$2MeSH$$aGases: radiation effects
000000544 650_2 $$2MeSH$$aHelium: analysis
000000544 650_2 $$2MeSH$$aHelium: chemistry
000000544 650_2 $$2MeSH$$aImage Enhancement: methods
000000544 650_2 $$2MeSH$$aIsotopes: analysis
000000544 650_2 $$2MeSH$$aIsotopes: chemistry
000000544 650_2 $$2MeSH$$aLasers
000000544 650_2 $$2MeSH$$aMagnetic Resonance Spectroscopy: methods
000000544 650_7 $$00$$2NLM Chemicals$$aGases
000000544 650_7 $$00$$2NLM Chemicals$$aIsotopes
000000544 650_7 $$07440-59-7$$2NLM Chemicals$$aHelium
000000544 650_7 $$2WoSType$$aJ
000000544 7001_ $$0P:(DE-HGF)0$$aAcosta, R.H.$$b1
000000544 7001_ $$0P:(DE-Juel1)VDB49819$$aBlümler, P.$$b2$$uFZJ
000000544 7001_ $$0P:(DE-HGF)0$$aSpiess, H.W.$$b3
000000544 773__ $$0PERI:(DE-600)1469665-4$$a10.1016/j.jmr.2008.12.003$$gVol. 197, p. 56 - 62$$p56 - 62$$q197<56 - 62$$tJournal of magnetic resonance$$v197$$x1090-7807$$y2009
000000544 8567_ $$uhttp://dx.doi.org/10.1016/j.jmr.2008.12.003
000000544 8564_ $$uhttps://juser.fz-juelich.de/record/544/files/FZJ-544.pdf$$yRestricted$$zPublished final document.
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000000544 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000000544 9141_ $$y2009
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