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Meeting Abstract

Cerebral blood volume changes in negative BOLD regions during visual stimulation in humans at 7T

MPG-Autoren
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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://www.ismrm.org/13/session84.htm
(Zusammenfassung)

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Zitation

Huber, L., Goense, J., Ivanov, D., Krieger, S., Turner, R., & Möller, H. (2013). Cerebral blood volume changes in negative BOLD regions during visual stimulation in humans at 7T. In 21st Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2013).


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-5575-C
Zusammenfassung
Based on recent studies in monkeys (Goense, J, et al., Neuron, in press), the changes in cerebral blood volume (CBV) were investigated in human brain regions that show negative BOLD responses during a visual task. Therefore a CBV-sensitive VASO method was implemented that can account for BOLD and inflow contaminations at 7T. In regions with negative BOLD responses, significant CBV decreases can be seen. This CBV decrease is dominated by voxels that include the cortical surface at the transition region between grey matter and cerebrospinal fluid, while many voxels in deeper layers show a CBV increase.