Emil Ljungberg1, Tobias Wood1, Ana Beatriz Solana2, Steven C.R. Williams1, Gareth J. Barker1, and Florian Wiesinger1,2
1Neuroimaging, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom, 2ASL Europe, GE Healthcare, Munich, Germany
1Neuroimaging, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom, 2ASL Europe, GE Healthcare, Munich, Germany
We demonstrate
silent motion corrected neuroimaging using a ZTE sequence together with an
interleaved spiral phyllotaxis k-space trajectory. A silent and motion
insensitive MRI protocol can reduce failed or refused scans, and thus save
time and money in both clinical and research settings.
Figure 4: Comparison of image quality without motion
correction, with MERLIN motion correction (MOCO), and without motion. A
clear improvement in image quality is observed with MOCO.
Figure 3: Animated figure showing the estimated translations (Δx,Δy,Δz)
and rotations (αx, αy, αz), which show a
pattern similar to the motion paradigm described in Figure 2A. Gray section in
the beginning indicate dummy and low-resolution spokes, for filling the
dead-time gap.
