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@ARTICLE{Voelker:891012,
      author       = {Voelker, Maximilian N. and Kraff, Oliver and Goerke,
                      Steffen and Laun, Frederik B. and Hanspach, Jannis and Pine,
                      Kerrin J. and Ehses, Philipp and Zaiss, Moritz and Liebert,
                      Andrzej and Straub, Sina and Eckstein, Korbinian and
                      Robinson, Simon and Nagel, Armin N. and Stefanescu, Maria R.
                      and Wollrab, Astrid and Klix, Sabrina and Felder, Jörg and
                      Hock, Michael and Bosch, Dario and Weiskopf, Nikolaus and
                      Speck, Oliver and Ladd, Mark E. and Quick, Harald H.},
      title        = {{T}he {T}raveling {H}eads 2.0: {M}ulticenter
                      {R}eproducibility of {Q}uantitative {I}maging {M}ethods at 7
                      {T}esla},
      journal      = {NeuroImage},
      volume       = {232},
      issn         = {1053-8119},
      address      = {Orlando, Fla.},
      publisher    = {Academic Press},
      reportid     = {FZJ-2021-01308},
      pages        = {117910 -},
      year         = {2021},
      abstract     = {ObjectThis study evaluates inter-site and intra-site
                      reproducibility at ten different 7 T sites for quantitative
                      brain imaging.Material and MethodsTwo 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.ResultsQuantitative 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.ConclusionOur 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.},
      cin          = {INM-4},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-4-20090406},
      pnm          = {525 - Decoding Brain Organization and Dysfunction
                      (POF4-525)},
      pid          = {G:(DE-HGF)POF4-525},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {33647497},
      UT           = {WOS:000639114500028},
      doi          = {10.1016/j.neuroimage.2021.117910},
      url          = {https://juser.fz-juelich.de/record/891012},
}