Abstract #1278

Rapid and high-resolution bSSFP fMRI using 3D stack of spirals at 9.4 T

Praveen Iyyappan Valsala¹, Philipp Ehses², Marten Veldmann², and Klaus Scheffler^1,3

¹Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, Tübingen, Germany, ²German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany, ³Department of Biomedical Magnetic Resonance, Eberhard Karls University, Tübingen, Germany

Synopsis

Keywords: Data Acquisition, fMRI (task based), bSSFP, Spiral, non-cartesian, sub-millimeter, whole-brain

We explored the spatio-temporal resolution and coverage of bSSFP BOLD contrast using a highly segmented 3D spiral readout. The functional activation maps acquired with the novel functional contrast for full visual field checkerboard stimulus is presented at submillimeter resolutions (0.6 mm³ & 0.8 mm³) and at 1.2 mm³for whole brain coverage. We also demonstrated rapid slice-selective water excitation using binomial pulses.

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