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@ARTICLE{Lwen:285914,
      author       = {Löwen, Daniel and Pracht, Eberhard D and Veldmann, Marten
                      and Gras, Vincent and Mauconduit, Franck and Boulant,
                      Nicolas and Stöcker, Tony},
      title        = {{C}alibration-{F}ree {GRAPE} p{T}x {P}ulses for
                      {H}omogeneous {S}patial-{S}elective {E}xcitation at 7{T}.},
      journal      = {Magnetic resonance in medicine},
      volume       = {95},
      number       = {6},
      issn         = {1522-2594},
      address      = {New York, NY [u.a.]},
      publisher    = {Wiley-Liss},
      reportid     = {DZNE-2026-00360},
      pages        = {3104 - 3115},
      year         = {2026},
      abstract     = {Extend the universal pulse GRAPE formalism to pulses with a
                      defined spectral response, and apply the concept to spatial
                      selection.We added Bloch simulations at several frequencies
                      for each voxel to the pulse calculation to create universal
                      spectrally-selective GRAPE pulses. With a superimposed
                      constant gradient field spatial selection was achieved. The
                      method was tested in slice- and slab-selective imaging
                      experiments.Universal spatially-selective GRAPE pulses
                      increased FA homogeneity and SNR. In 2D gradient echoes, the
                      SNR could be increased by approximately $6\%$ compared to CP
                      pulses, and in a slab-selective TSE sequence, the SNR
                      increased by $29\%$ against k T -spokes pulses.
                      Additionally, the slab-selective GRAPE pulse proved to be
                      more robust against B 0 deviations and is significantly
                      shorter in comparison to k T -spokes pulses while
                      maintaining a similar FA homogeneity.Spatially-selective
                      universal GRAPE pulses exhibit superior performance compared
                      to k T -spokes pulses. These short and robust pTx pulses
                      hold potential for enhancing a wide range of imaging
                      applications, thereby advancing 7T MRI technology closer to
                      clinical use.},
      keywords     = {Phantoms, Imaging / Humans / Algorithms / Magnetic
                      Resonance Imaging: methods / Signal-To-Noise Ratio /
                      Calibration / Image Processing, Computer-Assisted: methods /
                      Computer Simulation / Brain: diagnostic imaging / GRAPE
                      (Other) / parallel transmission (Other) / ultra‐high field
                      (Other) / universal pulses (Other)},
      cin          = {AG Stöcker},
      ddc          = {610},
      cid          = {I:(DE-2719)1013026},
      pnm          = {354 - Disease Prevention and Healthy Aging (POF4-354)},
      pid          = {G:(DE-HGF)POF4-354},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:41588662},
      pmc          = {pmc:PMC13049268},
      doi          = {10.1002/mrm.70266},
      url          = {https://pub.dzne.de/record/285914},
}