Abstract #2112

Improved digit selectivity using VASO-CBV in 7T digit motor mapping

Icaro A.F. Oliveira^1,2, Jeroen C.W. Siero^1,3, Serge O. Dumoulin^1,2,4, and Wietske van der Zwaag¹

¹Spinoza Centre for Neuroimaging, Amsterdam, Netherlands, ²Experimental and Applied Psychology, VU University, Amsterdam, Netherlands, ³Radiology, University Medical Centre Utrecht, Utrecht, Netherlands, ⁴Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, Netherlands

Synopsis

We used sub-millimeter resolution VASO fMRI at 7T to simultaneously map CBV-VASO and BOLD activation in the sensorimotor and somatosensory cortex during a finger digit mapping task. We reliably showed digit representation maps and quantified digit selectivity for both VASO-CBV and BOLD activations. VASO-CBV demonstrated a higher digit selectivity, confirming the higher spatial specificity of VASO-CBV.

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