Abstract #0747

On-resonant balanced Steady-State Free Precession imaging at 9.4T

Damien Nguyen^1,2, Tom Hilbert^3,4,5, Philipp Ehses^6,7, Klaus Scheffler^6,7, Jean-Philippe Thiran^4,5, Oliver Bieri^1,2, and Tobias Kober^3,4,5

¹Radiological Physics, Dep. of Radiology, University of Basel Hospital, Basel, Switzerland, ²Department of Biomedical Engineering, University of Basel, Basel, Switzerland, ³Advanced Clinical Imaging Technology (HC CMEA SUI DI BM PI), Siemens Healthcare AG, Lausanne, Switzerland, ⁴Department of Radiology, University Hospital Lausanne (CHUV), Lausanne, Switzerland, ⁵LTS5, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland, ⁶High-Field MR Center, Max Planck Institute for Biological Cybernetics, Tübingen, Germany, ⁷Department for Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany

In this work, we explore the possibility of using the recently proposed highly undersampled 3D phase-cycled balanced Steady-State Free Precession (bSSFP) sequence trueCISS to generate on-resonant band-free bSSFP images at 9.4T. By applying the forward signal model, it is also possible to synthetically generate bSSFP images at higher flip angles, which would otherwise be impossible to acquire due to SAR limitations. Lastly, we show a maximum bSSFP signal intensity image of the brain using the trueCISS estimated parameter maps.

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