Reconstruction of phase images for GRAPPA accelerated Magnetic Resonance Imaging

  • Christian RosEmail author
  • S. Witoszynskyj
  • K. -H. Herrmann
  • J. R. Reichenbach
Part of the IFMBE Proceedings book series (IFMBE, volume 22)


In this work we present a method to combine complex-valued phased array MR data based on a uniform sensitivity approach, which incorporates sensitivity profiles calculated from afore acquired data. The algorithm was implemented on a clinical 3T whole-body MR-Scanner and embedded into the vendor-specific standard reconstruction chain.

Additionally, it was linked with the GeneRalized Autocalibrating Partial Parallel Acquisition (GRAPPA) procedure to take advantage of partial parallel acquisition techniques as well. Thus, under-sampled data can be reconstructed with GRAPPA and subsequently combined with the presented method. Phase images reconstructed with the proposed method were in excellent agreement with reference data and did not suffer from errors due to incorrectly combined data.


Phase images phased array MRI image reconstruction partial parallel acquisition techniques GRAPPA 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Christian Ros
    • 1
    Email author
  • S. Witoszynskyj
    • 2
  • K. -H. Herrmann
    • 1
  • J. R. Reichenbach
    • 1
  1. 1.Medical Physics Group, Institute for Diagnostic and Interventional RadiologyFriedrich Schiller UniversityJenaGermany
  2. 2.Department of Diagnostic RadiologyMedical University of Vienna, AKHViennaAustria

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