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      Simultaneous PET/MR imaging: MR-based attenuation correction of local radiofrequency surface coils.

      1 , , ,
      Medical physics
      Wiley

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          Abstract

          In simultaneous positron emission tomography/magnetic resonance (PET/MR) imaging, local receiver surface radiofrequency (RF) coils are positioned in the field-of-view (FOV) of the PET detector during PET/MR data acquisition and potentially attenuate the PET signal. For flexible body RF surface coils placed on top of the patient's body, MR-based attenuation correction (AC) is an unsolved problem since the RF coils are not inherently visible in MR images and their individual position in the FOV is patient specific and not known a priori. The aim of this work was to quantify the effect of local body RF coils used in the Biograph mMR hybrid PET/MR system on PET emission data and to present techniques for MR-based position determination of these specific local RF coils.

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          Author and article information

          Journal
          Med Phys
          Medical physics
          Wiley
          0094-2405
          0094-2405
          Jul 2012
          : 39
          : 7
          Affiliations
          [1 ] Institute of Medical Physics, University of Erlangen-Nürnberg, Erlangen, Germany. daniel.paulus@imp.uni-erlangen.de
          Article
          10.1118/1.4729716
          22830764
          27cb3840-7b20-441e-9a96-cee61dd9c50c
          History

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