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Human functional imaging at 9.4 T: Spin echo and gradient echo EPI

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons83838

Budde,  J
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84213

Shajan,  G
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84187

Zaitsev M, Scheffler,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84145

Pohmann,  R
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Budde, J., Shajan, G., Zaitsev M, Scheffler, K., & Pohmann, R. (2012). Human functional imaging at 9.4 T: Spin echo and gradient echo EPI. Poster presented at 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012), Melbourne, Australia.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-B7AA-1
Abstract
Functional images with a finger tapping task were acquired using spin echo and gradient echo EPI sequences at 9.4 T with isotropic resolution of 1 mm. Resulting activation was registered onto high-resolution anatomic images. A mask of veins was identified; activated voxels were divided into ‘venous’ and ‘non-venous’, and averaged over subjects, voxels, and blocks. Activation levels were 6.1 ± 5.4 in non-venous and 9.1 ± 5.7 in venous locations. Time courses for the spin echo EPI are very similar and show an activation level of 3.9 ± 7.2 outside and 4.2 ± 7.0 inside veins.