Motion Corrected Silent ZTE Neuroimaging
Emil Ljungberg1,2, Tobias C. Wood1, Ana Beatriz Solana3, Steven C.R. Williams1, Gareth J. Barker1, and Florian Wiesinger1,3
1Department of Neuroimaging, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, United Kingdom, 2Department of Medical Radiation Physics, Lund University, Lund, Sweden, 3GE Healthcare, Munich, Germany
We present a new method called MERLIN for motion corrected silent neuroimaging using zero echo time (ZTE) MRI. Self-navigation is achieved with an interleaved 3D spiral phyllotaxis trajectory to produce image navigators. Retrospective motion correction is then applied to the collected raw data. The acoustic noise of MELIN was less than 4 dBA above ambient levels. A range of different head motion paradigms were evaluated (rotation and nodding), showing greatly improved image quality after motion correction in all cases.
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