Abstract #0815
Optical prospective motion correction for high resolution quantitative MRI (qMRI) of the brain
Martina F. Callaghan 1 , Oliver Josephs 1 , Michael Herbst 2 , Maxim Zaitsev 2 , Nicholas Todd 1 , and Nikolaus Weiskopf 1
1
Wellcome Trust Centre for Neuroimaging, UCL
Institute of Neurology, UCL, London, United Kingdom,
2
Department
of Radiology, University Medical Centre Freiburg,
Freiburg, Germany
In this work, prospective motion correction (PMC) via
external optical tracking is used to monitor and
compensate for head motion by updating the imaging
gradients in real time for the purpose of quantitative
relaxometry measurements. In the presence of gross
motion, the PMC system improves the data quality close
to the level of the no motion situation. In the absence
of gross motion, the PMC system remains beneficial by
further sharpening the GM/WM differentiation.
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