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@INPROCEEDINGS{Sforazzini:908198,
      author       = {Sforazzini, Francesco and Chen, Zhaolin and Baran, Jakub
                      and Bradley, Jason and Carey, Alexandra and Shah, N. Jon and
                      Egan, Gary},
      title        = {{MR}-based attenuation map re-alignment and motion
                      correction in simultaneous brain {MR}-{PET} imaging},
      reportid     = {FZJ-2022-02451},
      year         = {2017},
      abstract     = {Abstract:Head movement is a major issue in dynamic PET
                      imaging. A simultaneous MR-PET scanner is capable of
                      acquiring both MR and PET data concurrently, which enables
                      opportunities to use MR information for PET motion
                      correction. Here we propose an MR-based method to detect
                      head motion and to correct motion artefacts during PET image
                      reconstruction. The method is based on co-registration of
                      multiple MR contrasts to extract motion parameters. The
                      motion parameters are then used to guide the Multiple
                      Acquisition Frame (MAF) algorithm to bin the PET list-mode
                      data into multiple frames whenever significant motion
                      occurs. Furthermore, motion parameters are used to re-align
                      the PET attenuation u-map to each frame prior to the image
                      reconstruction. Finally, PET images are reconstructed for
                      each frame and combined to produce a final image. Using both
                      phantom and in-vivo human data, we show that this method can
                      significantly increase image quality and reduce motion
                      artefacts.},
      month         = {Apr},
      date          = {2017-04-18},
      organization  = {2017 IEEE 14th International Symposium
                       on Biomedical Imaging (ISBI 2017),
                       Melbourne (Australia), 18 Apr 2017 - 21
                       Apr 2017},
      cin          = {INM-4 / INM-11 / JARA-BRAIN},
      cid          = {I:(DE-Juel1)INM-4-20090406 / I:(DE-Juel1)INM-11-20170113 /
                      I:(DE-Juel1)VDB1046},
      pnm          = {5253 - Neuroimaging (POF4-525)},
      pid          = {G:(DE-HGF)POF4-5253},
      typ          = {PUB:(DE-HGF)1},
      doi          = {10.1109/ISBI.2017.7950508},
      url          = {https://juser.fz-juelich.de/record/908198},
}