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Meeting Abstract

Spatial specificity of CBV and BOLD fMRI in monkey striate cortex at 4.7T and 7T

MPG-Autoren
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Zappe,  A-C
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Logothetis,  NK
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Goense,  JBM
Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

Externe Ressourcen

https://cds.ismrm.org/ismrm-2007/files/1_program.pdf
(Zusammenfassung)

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Zitation

Zappe, A.-C., Logothetis, N., & Goense, J. (2007). Spatial specificity of CBV and BOLD fMRI in monkey striate cortex at 4.7T and 7T. In 2007 Joint Annual Meeting ISMRM-ESMRMB (pp. 136).


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0013-CDE7-6
Zusammenfassung
High resolution fMRI allows us to determine more accurately the origins of the fMRI signal. This has shown that even at
high field, the GE-BOLD signal has still a large vascular contribution [1]. Alternative methods like SE- and monocrystalline iron oxide nanocolloid (MION)-based methods have been shown to be spatially more specific than conventional BOLD, and are able to reveal functional subunits in the cortex [2-6]. Here we compare the specificity of BOLD and CBV fMRI methods in the macaque; its striate cortex shows very obvious laminar structure in anatomical images, allowing accurate determination of the precise location of the fMRI activation.