Abstract #3732

Submillimeter resolution fMRI in the midbrain: measuring T2* changes to a stop-task

Gilles de Hollander¹, Robert Trampel², Birte Forstmann¹, and Wietske van der Zwaag³

¹Universiteit van Amsterdam, Amsterdam, Netherlands, ²Max Planck Institute for Human Cognitive and Brain sciences, Leipzig, Germany, ³Spinoza Centre for Neuroimaging, Amsterdam, Netherlands

Multi-echo GRE was used to visualise BOLD signal changes in the midbrain, specifically targetting the subthalamic nucleus and substantia nigra, with submillimeter resolution. Midbrain clusters were very small and often only bordered the STN or SN, rather than falling robustly inside it, emphasizing the need for high spatial resolution.

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