Abstract #3845

Intravascular Shifted fMRI Contrast for Visual Stimulations at 3 Tesla Using DANTE-Prepared Dual-Echo EPI

Linqing Li¹, Yuhui Chai², Andy John Derbyshire¹, and Peter Bandettini³

¹Functional MRI Facility, National Institute of Mental Health, Bethesda, MD, United States, ²Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States, ³Section on Functional Imaging Methods, National Institute of Mental Health, Bethesda, MD, United States

Synopsis

Keywords: fMRI, fMRI (task based), Intravascular fMRI contrast, extravascular fMRI contrastBy using dual-echo DANTE-EPI for functional visual stimulation studies, the contrast of fractions of intravascular signal to total signal change can be generated. We show an intravascular shifted (IVS) contrast can provide simultaneous visualization of intra-extra vascular contrast under different frequencies of visual stimulations at 3T.

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