000203230 001__ 203230
000203230 005__ 20240619091144.0
000203230 0247_ $$2doi$$a10.1016/j.jmr.2015.04.014
000203230 0247_ $$2ISSN$$a0022-2364
000203230 0247_ $$2ISSN$$a1090-7807
000203230 0247_ $$2ISSN$$a1096-0856
000203230 0247_ $$2ISSN$$a1557-8968
000203230 0247_ $$2WOS$$aWOS:000358339700002
000203230 037__ $$aFZJ-2015-05216
000203230 082__ $$a550
000203230 1001_ $$0P:(DE-Juel1)143659$$aLiu, Chao$$b0
000203230 245__ $$aEffect of magnetic field fluctuation on ultra-low field MRI measurements in the unshielded laboratory environment
000203230 260__ $$aAmsterdam [u.a.]$$bElsevier$$c2015
000203230 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1441625729_16210
000203230 3367_ $$2DataCite$$aOutput Types/Journal article
000203230 3367_ $$00$$2EndNote$$aJournal Article
000203230 3367_ $$2BibTeX$$aARTICLE
000203230 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000203230 3367_ $$2DRIVER$$aarticle
000203230 520__ $$aMagnetic field fluctuations in our unshielded urban laboratory can reach hundreds of nT in the noisy daytime and is only a few nT in the quiet midnight. The field fluctuation causes the Larmor frequency fL to drift randomly for several Hz during the unshielded ultra-low field (ULF) nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) measurements, thus seriously spoiling the averaging effect and causing imaging artifacts. By using an active compensation (AC) technique based on the spatial correlation of the low-frequency magnetic field fluctuation, the field fluctuation can be suppressed to tens of nT, which is a moderate situation between the noisy daytime and the quiet midnight. In this paper, the effect of the field fluctuation on ULF MRI measurements was investigated. The 1D and 2D MRI signals of a water phantom were measured using a second-order low-Tc superconducting quantum interference device (SQUID) in three fluctuation cases: severe fluctuation (noisy daytime), moderate fluctuation (daytime with AC) and minute fluctuation (quiet midnight) when different gradient fields were applied. When the active compensation is applied or when the frequency encoding gradient field Gx reaches a sufficiently strong value in our measurements, the image artifacts become invisible in all three fluctuation cases. Therefore it is feasible to perform ULF-MRI measurements in unshielded urban environment without imaging artifacts originating from magnetic fluctuations by using the active compensation technique and/or strong gradient fields.
000203230 536__ $$0G:(DE-HGF)POF3-552$$a552 - Engineering Cell Function (POF3-552)$$cPOF3-552$$fPOF III$$x0
000203230 536__ $$0G:(DE-HGF)POF3-553$$a553 - Physical Basis of Diseases (POF3-553)$$cPOF3-553$$fPOF III$$x1
000203230 588__ $$aDataset connected to CrossRef
000203230 7001_ $$0P:(DE-HGF)0$$aChang, Baolin$$b1
000203230 7001_ $$0P:(DE-HGF)0$$aQiu, Longqing$$b2
000203230 7001_ $$0P:(DE-HGF)0$$aDong, Hui$$b3$$eCorresponding author
000203230 7001_ $$0P:(DE-HGF)0$$aQiu, Yang$$b4
000203230 7001_ $$0P:(DE-Juel1)128754$$aZhang, Yi$$b5
000203230 7001_ $$0P:(DE-Juel1)128697$$aKrause, Hans-Joachim$$b6
000203230 7001_ $$0P:(DE-Juel1)128713$$aOffenhäusser, Andreas$$b7
000203230 7001_ $$0P:(DE-HGF)0$$aXie, Xiaoming$$b8
000203230 773__ $$0PERI:(DE-600)1469665-4$$a10.1016/j.jmr.2015.04.014$$gVol. 257, p. 8 - 14$$p8 - 14$$tJournal of magnetic resonance$$v257$$x1090-7807$$y2015
000203230 8564_ $$uhttps://juser.fz-juelich.de/record/203230/files/1-s2.0-S1090780715001020-main.pdf$$yRestricted
000203230 8564_ $$uhttps://juser.fz-juelich.de/record/203230/files/1-s2.0-S1090780715001020-main.gif?subformat=icon$$xicon$$yRestricted
000203230 8564_ $$uhttps://juser.fz-juelich.de/record/203230/files/1-s2.0-S1090780715001020-main.jpg?subformat=icon-1440$$xicon-1440$$yRestricted
000203230 8564_ $$uhttps://juser.fz-juelich.de/record/203230/files/1-s2.0-S1090780715001020-main.jpg?subformat=icon-180$$xicon-180$$yRestricted
000203230 8564_ $$uhttps://juser.fz-juelich.de/record/203230/files/1-s2.0-S1090780715001020-main.jpg?subformat=icon-640$$xicon-640$$yRestricted
000203230 8564_ $$uhttps://juser.fz-juelich.de/record/203230/files/1-s2.0-S1090780715001020-main.pdf?subformat=pdfa$$xpdfa$$yRestricted
000203230 909CO $$ooai:juser.fz-juelich.de:203230$$pVDB
000203230 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)143659$$aForschungszentrum Jülich GmbH$$b0$$kFZJ
000203230 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)128754$$aForschungszentrum Jülich GmbH$$b5$$kFZJ
000203230 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)128697$$aForschungszentrum Jülich GmbH$$b6$$kFZJ
000203230 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)128713$$aForschungszentrum Jülich GmbH$$b7$$kFZJ
000203230 9131_ $$0G:(DE-HGF)POF3-552$$1G:(DE-HGF)POF3-550$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lBioSoft – Fundamentals for future Technologies in the fields of Soft Matter and Life Sciences$$vEngineering Cell Function$$x0
000203230 9131_ $$0G:(DE-HGF)POF3-553$$1G:(DE-HGF)POF3-550$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lBioSoft – Fundamentals for future Technologies in the fields of Soft Matter and Life Sciences$$vPhysical Basis of Diseases$$x1
000203230 9141_ $$y2015
000203230 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bJ MAGN RESON : 2013
000203230 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000203230 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000203230 915__ $$0StatID:(DE-HGF)0310$$2StatID$$aDBCoverage$$bNCBI Molecular Biology Database
000203230 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List
000203230 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000203230 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000203230 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000203230 915__ $$0StatID:(DE-HGF)1030$$2StatID$$aDBCoverage$$bCurrent Contents - Life Sciences
000203230 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000203230 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5
000203230 920__ $$lyes
000203230 9201_ $$0I:(DE-Juel1)PGI-8-20110106$$kPGI-8$$lBioelektronik$$x0
000203230 9201_ $$0I:(DE-Juel1)ICS-8-20110106$$kICS-8$$lBioelektronik$$x1
000203230 9201_ $$0I:(DE-82)080009_20140620$$kJARA-FIT$$lJARA-FIT$$x2
000203230 980__ $$ajournal
000203230 980__ $$aVDB
000203230 980__ $$aI:(DE-Juel1)PGI-8-20110106
000203230 980__ $$aI:(DE-Juel1)ICS-8-20110106
000203230 980__ $$aI:(DE-82)080009_20140620
000203230 980__ $$aUNRESTRICTED
000203230 981__ $$aI:(DE-Juel1)IBI-3-20200312
000203230 981__ $$aI:(DE-Juel1)ICS-8-20110106