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000167751 1001_ $$aVoelker, Maximilian N$$b0
000167751 245__ $$aThe Traveling Heads 2.0: Multicenter Reproducibility of Quantitative Imaging Methods at 7 Tesla.
000167751 260__ $$aOrlando, Fla.$$bAcademic Press$$c2021
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000167751 500__ $$a2021 May 15;232:117910
000167751 520__ $$aThis study evaluates inter-site and intra-site reproducibility at ten different 7 T sites for quantitative brain imaging.Two subjects - termed the 'traveling heads' - were imaged at ten different 7 T sites with a harmonized quantitative brain MR imaging protocol. In conjunction with the system calibration, MP2RAGE, QSM, CEST and multi-parametric mapping/relaxometry were examined.Quantitative measurements with MP2RAGE showed very high reproducibility across sites and subjects, and errors were in concordance with previous results and other field strengths. QSM had high inter-site reproducibility for relevant subcortical volumes. CEST imaging revealed systematic differences between the sites, but reproducibility was comparable to results in the literature. Relaxometry had also very high agreement between sites, but due to the high sensitivity, differences caused by different applications of the B1 calibration of the two RF coil types used were observed.Our results show that quantitative brain imaging can be performed with high reproducibility at 7 T and with similar reliability as found at 3 T for multicenter studies of the supratentorial brain.
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000167751 650_7 $$2Other$$aMagnetic resonance imaging
000167751 650_7 $$2Other$$amulticenter
000167751 650_7 $$2Other$$aquantitative imaging
000167751 650_7 $$2Other$$areproducibility
000167751 650_7 $$2Other$$aultrahigh field
000167751 7001_ $$aKraff, Oliver$$b1
000167751 7001_ $$0P:(DE-HGF)0$$aGoerke, Steffen$$b2
000167751 7001_ $$aLaun, Frederik B$$b3
000167751 7001_ $$aHanspach, Jannis$$b4
000167751 7001_ $$aPine, Kerrin J$$b5
000167751 7001_ $$aEhses, Philipp$$b6
000167751 7001_ $$aZaiss, Moritz$$b7
000167751 7001_ $$aLiebert, Andrzej$$b8
000167751 7001_ $$0P:(DE-He78)4e04dcea1b6a4449a8fa005bcf36322b$$aStraub, Sina$$b9$$udkfz
000167751 7001_ $$aEckstein, Korbinian$$b10
000167751 7001_ $$aRobinson, Simon$$b11
000167751 7001_ $$aNagel, Armin N$$b12
000167751 7001_ $$aStefanescu, Maria R$$b13
000167751 7001_ $$aWollrab, Astrid$$b14
000167751 7001_ $$aKlix, Sabrina$$b15
000167751 7001_ $$aFelder, Jörg$$b16
000167751 7001_ $$aHock, Michael$$b17
000167751 7001_ $$aBosch, Dario$$b18
000167751 7001_ $$aWeiskopf, Nikolaus$$b19
000167751 7001_ $$aSpeck, Oliver$$b20
000167751 7001_ $$0P:(DE-He78)022611a2317e4de40fd912e0a72293a8$$aLadd, Mark E$$b21
000167751 7001_ $$aQuick, Harald H$$b22
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