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  Reliable mapping of columnar structures in early visual cortex using GE-EPI at 7 T

Haenelt, D., Trampel, R., Mueller, R., Nasr, S., Polimeni, J., Tootell, R., et al. (2019). Reliable mapping of columnar structures in early visual cortex using GE-EPI at 7 T. Poster presented at ISMRM Workshop on Ultrahigh Field Magnetic Resonance, Dubrovnik, Croatia.

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haenelt_ismrm_workshop_2019.pdf (Publisher version), 3MB
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 Creators:
Haenelt, Daniel1, 2, Author           
Trampel, Robert2, Author           
Mueller, Roland3, Author
Nasr, Shahin4, 5, Author
Polimeni, Jonathan4, 5, Author
Tootell, Roger4, 5, Author
Sereno, Martin6, Author
Weiskopf, Nikolaus2, Author           
Affiliations:
1International Max Planck Research School on Neuroscience of Communication: Function, Structure, and Plasticity, Leipzig, Germany, ou_persistent22              
2Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2205649              
3Department of Neurophysics, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, ou_persistent22              
4Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, USA, ou_persistent22              
5Department of Radiology, Harvard Medical School, Boston, USA, ou_persistent22              
6Department of Psychology and Neuroimaging Center, San Diego State University, San Diego, USA, ou_persistent22              

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 Abstract: Despite GE-EPI being the method of choice in most fMRI applications, their use in high-resolution acquisitions is questioned due to their inherent sensitivity to large draining veins [1]. To examine the effective spatial resolution limits of GE-EPI, it is necessary to measure physiological structures in the human brain with known spatial extent such as ocular dominance columns (ODCs) in V1 or the stripe architecture (thin, thick, pale) in V2. We show that ODCs and thin stripes can be reliably detected using GE-EPI at 7 T.

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 Dates: 2019-03
 Publication Status: Not specified
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Title: ISMRM Workshop on Ultrahigh Field Magnetic Resonance
Place of Event: Dubrovnik, Croatia
Start-/End Date: 2019-03-31 - 2019-04-03

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