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@ARTICLE{Voelker:167751,
      author       = {M. N. Voelker and O. Kraff and S. Goerke$^*$ and F. B. Laun
                      and J. Hanspach and K. J. Pine and P. Ehses and M. Zaiss and
                      A. Liebert and S. Straub$^*$ and K. Eckstein and S. Robinson
                      and A. N. Nagel and M. R. Stefanescu and A. Wollrab and S.
                      Klix and J. Felder and M. Hock and D. Bosch and N. Weiskopf
                      and O. Speck and M. E. Ladd$^*$ and H. H. Quick},
      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     = {DKFZ-2021-00515},
      pages        = {117910},
      year         = {2021},
      note         = {2021 May 15;232:117910},
      abstract     = {This 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.},
      keywords     = {Magnetic resonance imaging (Other) / multicenter (Other) /
                      quantitative imaging (Other) / reproducibility (Other) /
                      ultrahigh field (Other)},
      cin          = {E020},
      ddc          = {610},
      cid          = {I:(DE-He78)E020-20160331},
      pnm          = {315 - Bildgebung und Radioonkologie (POF4-315)},
      pid          = {G:(DE-HGF)POF4-315},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:33647497},
      doi          = {10.1016/j.neuroimage.2021.117910},
      url          = {https://inrepo02.dkfz.de/record/167751},
}