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@ARTICLE{Ko:857995,
      author       = {Ko, Yunkyoung and Yun, Seong Dae and Hong, Suk-Min and Ha,
                      Yonghyun and Choi, Chang-Hoon and Shah, N. J. and Felder,
                      Jörg},
      title        = {{MR}-compatible, 3.8 inch dual organic light-emitting diode
                      ({OLED}) in-bore display for functional {MRI}},
      journal      = {PLOS ONE},
      volume       = {13},
      number       = {10},
      issn         = {1932-6203},
      address      = {San Francisco, California, US},
      publisher    = {PLOS},
      reportid     = {FZJ-2018-06942},
      pages        = {e0205325 -},
      year         = {2018},
      abstract     = {Purpose: Functional MRI (fMRI) is a well-established method
                      used to investigate localised brain activation by virtue of
                      the blood oxygen level dependent (BOLD) effect. It often
                      relies on visual presentations using beam projectors, liquid
                      crystal display (LCD) screens, and goggle systems. In this
                      study, we designed an MR compatible, low-cost display unit
                      based on organic light-emitting diodes (OLED) and
                      demonstrated its performance.MethodsA 3.8” dual OLED
                      module and an MIPI-to-HDMI converter board were used. The
                      OLED module was enclosed using a shielded box to prevent
                      noise emission from the display module and the potentially
                      destructive absorption of high power RF from the MRI
                      transmit pulses. The front of the OLED module was covered by
                      a conductive, transparent mesh. Power was supplied from a
                      non-magnetic battery. The shielding of the display was
                      evaluated by directly measuring the electromagnetic emission
                      with the aid of a pickup loop and a low noise amplifier, as
                      well as by examining the signal-to-noise ratio (SNR) of
                      phantom MRI data. The visual angle of the display was
                      calculated and compared to standard solutions. As a proof of
                      concept of the OLED display for fMRI, a healthy volunteer
                      was presented with a visual block paradigm.ResultsThe OLED
                      unit was successfully installed inside a 3 T MRI scanner
                      bore. Operation of the OLED unit did not degrade the SNR of
                      the phantom images. The fMRI data suggest that visual
                      stimulation can be effectively delivered to subjects with
                      the proposed OLED unit without any significant interference
                      between the MRI acquisitions and the display module
                      itself.DiscussionWe have constructed and evaluated the MR
                      compatible, dual OLED display for fMRI studies. The proposed
                      OLED display provides the benefits of high resolution, wide
                      visual angle, and high contrast video images during fMRI
                      exams.},
      cin          = {INM-4 / JARA-BRAIN},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-4-20090406 / $I:(DE-82)080010_20140620$},
      pnm          = {573 - Neuroimaging (POF3-573)},
      pid          = {G:(DE-HGF)POF3-573},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30308026},
      UT           = {WOS:000447173500060},
      doi          = {10.1371/journal.pone.0205325},
      url          = {https://juser.fz-juelich.de/record/857995},
}