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Multiparametric imaging with heterogeneous radiofrequency fields

Author

Listed:
  • Martijn A. Cloos

    (Bernard and Irene Schwartz Center for Biomedical Imaging, Center for Advanced Imaging Innovation and Research, New York University School of Medicine)

  • Florian Knoll

    (Bernard and Irene Schwartz Center for Biomedical Imaging, Center for Advanced Imaging Innovation and Research, New York University School of Medicine)

  • Tiejun Zhao

    (Bernard and Irene Schwartz Center for Biomedical Imaging, Center for Advanced Imaging Innovation and Research, New York University School of Medicine
    Siemens Medical Solutions USA Inc.)

  • Kai T. Block

    (Bernard and Irene Schwartz Center for Biomedical Imaging, Center for Advanced Imaging Innovation and Research, New York University School of Medicine)

  • Mary Bruno

    (Bernard and Irene Schwartz Center for Biomedical Imaging, Center for Advanced Imaging Innovation and Research, New York University School of Medicine)

  • Graham C. Wiggins

    (Bernard and Irene Schwartz Center for Biomedical Imaging, Center for Advanced Imaging Innovation and Research, New York University School of Medicine)

  • Daniel K. Sodickson

    (Bernard and Irene Schwartz Center for Biomedical Imaging, Center for Advanced Imaging Innovation and Research, New York University School of Medicine)

Abstract

Magnetic resonance imaging (MRI) has become an unrivalled medical diagnostic technique able to map tissue anatomy and physiology non-invasively. MRI measurements are meticulously engineered to control experimental conditions across the sample. However, residual radiofrequency (RF) field inhomogeneities are often unavoidable, leading to artefacts that degrade the diagnostic and scientific value of the images. Here we show that, paradoxically, these artefacts can be eliminated by deliberately interweaving freely varying heterogeneous RF fields into a magnetic resonance fingerprinting data-acquisition process. Observations made based on simulations are experimentally confirmed at 7 Tesla (T), and the clinical implications of this new paradigm are illustrated with in vivo measurements near an orthopaedic implant at 3T. These results show that it is possible to perform quantitative multiparametric imaging with heterogeneous RF fields, and to liberate MRI from the traditional struggle for control over the RF field uniformity.

Suggested Citation

  • Martijn A. Cloos & Florian Knoll & Tiejun Zhao & Kai T. Block & Mary Bruno & Graham C. Wiggins & Daniel K. Sodickson, 2016. "Multiparametric imaging with heterogeneous radiofrequency fields," Nature Communications, Nature, vol. 7(1), pages 1-10, November.
  • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12445
    DOI: 10.1038/ncomms12445
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    Cited by:

    1. Gastao Cruz & Torben Schneider & Tom Bruijnen & Andreia S Gaspar & René M Botnar & Claudia Prieto, 2018. "Accelerated magnetic resonance fingerprinting using soft-weighted key-hole (MRF-SOHO)," PLOS ONE, Public Library of Science, vol. 13(8), pages 1-18, August.

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