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@ARTICLE{Rietsch:181312,
      author       = {S. H. G. Rietsch and V. Pfaffenrot and A. K. Bitz and S.
                      Orzada and S. Brunheim and A. Lazik-Palm and J. M. Theysohn
                      and M. E. Ladd$^*$ and H. H. Quick and O. Kraff},
      title        = {{A}n 8-channel transceiver 7-channel receive {RF} coil
                      setup for high {SNR} ultrahigh-field {MRI} of the shoulder
                      at 7{T}.},
      journal      = {Medical physics},
      volume       = {44},
      number       = {12},
      issn         = {0094-2405},
      address      = {College Park, Md.},
      publisher    = {AAPM},
      reportid     = {DKFZ-2022-01939},
      pages        = {6195 - 6208},
      year         = {2017},
      abstract     = {In this work, we present an 8-channel transceiver (Tx/Rx)
                      7-channel receive (Rx) radiofrequency (RF) coil setup for 7
                      T ultrahigh-field MR imaging of the shoulder.A C-shaped
                      8-channel Tx/Rx coil was combined with an anatomically
                      close-fitting 7-channel Rx-only coil. The safety and
                      performance parameters of this coil setup were evaluated on
                      the bench and in phantom experiments. The 7 T MR imaging
                      performance of the shoulder RF coil setup was evaluated in
                      in vivo measurements using a 3D DESS, a 2D PD-weighted TSE
                      sequence, and safety supervision based on virtual
                      observation points.Distinct SNR gain and acceleration
                      capabilities provided by the additional 7-channel Rx-only
                      coil were demonstrated in phantom and in vivo measurements.
                      The power efficiency indicated good performance of each
                      channel and a maximum B1+ of 19 μT if the hardware RF power
                      limits of the MR system were exploited. MR imaging of the
                      shoulder was demonstrated with clinically excellent image
                      quality and submillimeter spatial resolution.The presented
                      8-channel transceiver 7-channel receive RF coil setup was
                      successfully applied for in vivo 7 T MRI of the shoulder
                      providing a clear SNR gain vs the transceiver array without
                      the additional receive array. Homogeneous images across the
                      shoulder region were obtained using 8-channel
                      subject-specific phase-only RF shimming.},
      keywords     = {Humans / Magnetic Resonance Imaging: instrumentation /
                      Phantoms, Imaging / Radio Waves / Shoulder: diagnostic
                      imaging / Signal-To-Noise Ratio / 7 Tesla (7T) (Other) / RF
                      antenna array (Other) / radio frequency (RF) (Other) /
                      shoulder (Other) / ultrahigh-field MRI (Other)},
      cin          = {E020},
      ddc          = {610},
      cid          = {I:(DE-He78)E020-20160331},
      pnm          = {315 - Imaging and radiooncology (POF3-315)},
      pid          = {G:(DE-HGF)POF3-315},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:28976586},
      doi          = {10.1002/mp.12612},
      url          = {https://inrepo02.dkfz.de/record/181312},
}