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Abstract #0747

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

Damien Nguyen1,2, Tom Hilbert3,4,5, Philipp Ehses6,7, Klaus Scheffler6,7, Jean-Philippe Thiran4,5, Oliver Bieri1,2, and Tobias Kober3,4,5

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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