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Abstract #4715

Accelerated Enhanced Simultaneous Single-Quantum and Triple-Quantum-Filtered Sodium MRI Using Compressed Sensing at 7T

Qingping Chen1,2, Wieland A. Worthoff1, and N. Jon Shah1,3,4,5
1Institute of Neuroscience and Medicine 4, Forschungszentrum Jülich GmbH, Jülich, Germany, 2Faculty of Medicine, RWTH Aachen University, Aachen, Germany, 3Institute of Neuroscience and Medicine 11, Forschungszentrum Jülich GmbH, Jülich, Germany, 4JARA–BRAIN–Translational Medicine, Aachen, Germany, 5Department of Neurology, RWTH Aachen University, Aachen, Germany

Synopsis

Keywords: Non-Proton, Pulse Sequence Design, Multiple-quantum filtering; Sodium MRIEnhanced simultaneous single-quantum and triple-quantum-filtered imaging of 23Na (SISTINA) enables images to be weighted towards restricted sodium, a promising biomarker for clinical practice, but suffers from long acquisition times and low image quality. However, this can be alleviated by applying compressed sensing (CS). This work establishes a novel enhanced SISTINA sequence using FLORET sampling at 7T and demonstrates that CS can accelerate SISTINA acquisitions with less noise and better structure preservation than non-uniform fast Fourier transform while maintaining proper weightings towards total, non-restricted, and restricted sodium. The reduced acquisition time facilitates the clinical transition of enhanced SISTINA.

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