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7 Tesla compatible in-bore display for functional magnetic resonance imaging

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Abstract

Background and methods

A liquid crystal display was modified for use inside a 7 T MR magnet. SNR measurements were performed using different imaging sequences with the monitor absent, present, or activated. fMRI with a volunteer was conducted using a visual stimulus.

Results and discussion

SNR was reduced by 3.7 %/7.9 % in echo planar/fast-spin echo images when the monitor was on which can be explained by the limited shielding of the coated front window (40 dB). In the fMRI experiments, activated regions in the visual cortex were clearly visible. The monitor provided excellent resolution at minor SNR reduction in EPI images, and is thus suitable for fMRI at ultra-high field.

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Authors and Affiliations

  1. Department of Radiology, Medical Physics, University Medical Centre Freiburg, Breisacher Str. 60a, 79106, Freiburg, Germany

    Jens Groebner & Michael Bock

  2. Department of Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany

    Jens Groebner, Moritz Cornelius Berger, Reiner Umathum & Jaane Rauschenberg

Authors
  1. Jens Groebner
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  2. Moritz Cornelius Berger
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  3. Reiner Umathum
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  4. Michael Bock
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  5. Jaane Rauschenberg
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Correspondence to Jens Groebner.

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Groebner, J., Berger, M.C., Umathum, R. et al. 7 Tesla compatible in-bore display for functional magnetic resonance imaging. Magn Reson Mater Phy 26, 371–375 (2013). https://doi.org/10.1007/s10334-012-0363-2

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  • DOI: https://doi.org/10.1007/s10334-012-0363-2

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