The effects of coil compression on simultaneous multislice and conventional fMRI
نویسندگان
چکیده
PURPOSE: Simultaneous multislice (SMS) imaging is an increasingly popular parallel imaging method for accelerating fMRI, but typically requires array coils with many coils, and therefore much storage space and computation time. Here, we investigate the effects that coil compression can have on functional activation for both SMS and conventional fMRI. Although SMS imaging has been demonstrated using Cartesian trajectories [1], it can also benefit from the susceptibility properties of efficient non-Cartesian trajectories. We use a concentric ring trajectory to enable better SMS GRAPPA reconstruction while still benefitting from the susceptibility signal recovery advantages provided by the similar spiral-in sampling pattern.
منابع مشابه
Coil compression in simultaneous multislice functional MRI with concentric ring slice-GRAPPA and SENSE.
PURPOSE Simultaneous multislice (SMS) imaging is a useful way to accelerate functional magnetic resonance imaging (fMRI). As acceleration becomes more aggressive, an increasingly larger number of receive coils are required to separate the slices, which significantly increases the computational burden. We propose a coil compression method that works with concentric ring non-Cartesian SMS imaging...
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