Abstract #3669
Camera placement for optical prospective motion correction: mechanical tolerance analysis
Julian Maclaren 1 , Murat Aksoy 1 , Benjamin Zahneisen 1 , and Roland Bammer 1
1
Department of Radiology, Stanford
University, Stanford, CA, United States
Optical prospective motion correction requires that the
position and orientation of the tracking system
(typically a camera) is known relative to the reference
frame of the MRI scanner. This provides a challenge for
systems where the camera is frequently removed and
reinstalled. One such example is when the camera is
mounted on the head coil, which then moves in and out of
the scanner with the patient table. In this work, we use
simulations and in vivo measurements to investigate how
precisely the camera needs to be repositioned in order
to maintain good quality prospective motion correction.
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