Abstract #1102

Accelerated 3D stack-of-spiral bSSFP for functional imaging at 9.4T: Pilot study

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, Tübingen, Germany

Synopsis

We investigate the possibility of using longer multi-shot spiral readouts to accelerate balanced steady-state free precession (bSSFP) at ultra-high field (UHF) for functional imaging. The reconstruction is performed with the full signal model accounting for spatial B₀inhomogeneity and gradient imperfections. We present the activation maps from flickering checkerboard stimulus experiment and discuss challenges of spiral bSSFP at UHF.

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