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Abstract #1292

Markerless Optical Tracking for Motion Correction in MR and PET/MR Imaging of the Brain

Julian Maclaren1, Andre Kyme2, Murat Aksoy1, Benjamin Zahneisen1, and Roland Bammer1

1Department of Radiology, Stanford University, Stanford, CA, United States, 2Brain and Mind Centre, University of Sydney, Sydney, Australia

Optical prospective motion correction using markers attached to the patient’s head has been widely demonstrated to improve image quality in MRI of the brain. To simplify patient workflow, it would be helpful to remove the need for the marker. We have previously demonstrated markerless tracking using a stereo camera system, but this was done outside of the MR environment and used a 6-axis robot to validate tracking. In this work, we demonstrate markerless optical tracking in two volunteers during simultaneous MRI and use the markerless tracking data to retrospectively realign images.

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