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@INBOOK{Worthoff:858913,
      author       = {Worthoff, Wieland and Yun, S. D.},
      title        = {{CHAPTER} 1. {I}ntroduction to {M}agnetic {R}esonance
                      {I}maging},
      address      = {Cambridge},
      publisher    = {Royal Society of Chemistry},
      reportid     = {FZJ-2018-07749},
      series       = {New Developments in NMR},
      pages        = {1 - 44},
      year         = {2018},
      comment      = {Hybrid MR-PET Imaging / Shah, N Jon (Editor)},
      booktitle     = {Hybrid MR-PET Imaging / Shah, N Jon
                       (Editor)},
      abstract     = {Nuclear magnetic resonance (NMR) is the technique that
                      underpins magnetic resonance imaging (MRI) in its
                      application in diagnostic medical imaging. Spin dynamics in
                      NMR are described using a semi-classical model resulting in
                      a net magnetisation, which is amenable to manipulation using
                      radiofrequency pulses. The introduction of a spatially
                      varying magnetic field, the magnetic field gradient, in the
                      three orthogonal directions is introduced and it is shown
                      how the application of gradients enables the selection of a
                      physical slice and encoding of the two remaining in-plane
                      dimensions. The concept of image encoding is then extended
                      to 3D imaging. Beginning with a simple classical spin model,
                      it is shown how the phenomenological Bloch equations can be
                      derived and solved under the influence of particular field
                      configurations. Eventually, the Bloch equations lead to the
                      so-called signal equation and the introduction of the
                      concept of a reciprocal space, the k-space, which is linked
                      to real space by the Fourier transform (FT). Image
                      reconstruction techniques going beyond the FT are also
                      briefly touched upon to give the reader a fuller
                      appreciation of modern, state-of-the-art MRI. In-plane
                      acceleration methods operating both in k-space and in real
                      space are described, as are multi-band acceleration
                      techniques, which enable the acquisition of multiple slices
                      simultaneously. Finally, a classification scheme, albeit a
                      simple and incomplete one, is presented to enable the novice
                      reader to gain an understanding of how order can be brought
                      into the world of MRI pulse sequences},
      cin          = {INM-4 / INM-11 / JARA-BRAIN},
      cid          = {I:(DE-Juel1)INM-4-20090406 / I:(DE-Juel1)INM-11-20170113 /
                      $I:(DE-82)080010_20140620$},
      pnm          = {573 - Neuroimaging (POF3-573)},
      pid          = {G:(DE-HGF)POF3-573},
      typ          = {PUB:(DE-HGF)7},
      doi          = {10.1039/9781788013062-00001},
      url          = {https://juser.fz-juelich.de/record/858913},
}