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Abstract #0855

Real time visual feedback for reproducible head motion

Adam van Niekerk1, Johan Berglund2, Henric Ryden1,3, Tim Sprenger1,4, Ola Norbeck1,3, Enrico Avventi1,3, and Stefan Skare1,3
1Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden, 2Medical Physics, Uppsala University Hospital, Uppsala, Sweden, 3Neuroradiology, Karolinska University Hospital, Stockholm, Sweden, 4MR Applied Science Laboratory Europe, GE healthcare, Stockholm, Sweden


The timing and magnitude of volunteer head motion has a significant impact on artefact level. It can therefore be difficult to reproduce motion correction results. Moreover, it is of interest to replicate patient motion retrospectively, in volunteers, to better understand the efficacy of a motion correction method. We attempt to solve this by stamping motion updates with a synchronisation “tag”. A rolling model is used to project the volunteer’s pose onto an MRI compatible display. The “tag” synchronised pose from a previous scan is then shown alongside the volunteer’s current pose, allowing them to track and hence reproduce the motion.

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