Niklas Wehkamp1, Benjamin Richard Knowles 1, Patrick Hucker1, and Maxim Zaitsev1
Marker fixation remains an unresolved issue in
Prospective Motion Correction (PMC) using optical tracking. The most common and
simple approach to track motion of the skull is using markers adhered to the face.
However, markers applied in this fashion can report erroneous positions due to facial
gestures of the subject during the MR examination. The presented approach using
multiple markers is a patient friendly solution, offering robust position data
for PMC in the presence of facial gestures. The presented approach is a
promising solution to stabilize prospective motion tracking and thus to significantly
reduce costs for MR imaging facilities.