Abstract #0503
SNR-efficient SSFP with k-space aliasing
Peter J Lally1,2, Ben Statton3, Paul M Matthews1,4, Mark Chiew5, Karla L Miller5, and Neal K Bangerter6
1Department of Brain Sciences, Imperial College London, London, United Kingdom, 2UK Dementia Research Institute Centre for Care Research and Technology, London, United Kingdom, 3MRC London Institute of Medical Sciences, Imperial College London, London, United Kingdom, 4UK Dementia Research Institute Centre at Imperial College London, London, United Kingdom, 5Wellcome Centre for Integrative Neuroimaging, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom, 6Department of Bioengineering, Imperial College London, London, United Kingdom
Synopsis
Steady state free precession (SSFP) imaging with unbalanced gradients (e.g. FISP, PSIF, DESS) causes aliasing in k-space which is often overlooked, or at best, minimised with large spoilers. Here we exploit this phenomenon and use the aliased signals to increase the SNR-efficiency of SSFP imaging.
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