Abstract #0637

Submillimeter Arterial Blood Contrast fMRI at 7T

Nikos Priovoulos¹, Icaro Agenor Ferreira de Oliveira¹, Benedikt Poser², David G Norris^3,4, and Wietske van der Zwaag¹

¹Spinoza Center, Amsterdam, Netherlands, ²Maastricht University, Maastricht, Netherlands, ³Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, Netherlands, ⁴Erwin L. Hahn Institute for MRI, University of Duisburg-Essen, Essen, Germany

BOLD-fMRI has transformed human neuroscience, but is limited in its spatial specificity compared to cerebral blood-volume approaches. Arterial-Blood-Contrast was recently suggested as a cerebral-blood-volume method based on Magnetization transfer. Here, we apply Arterial-Blood-Contrast in the SAR-constrained 7T environment and examine its submillimeter usage. The results suggest good localization compared to BOLD and high-sensitivity.

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