Improving Motion Robustness of Pseudo-Continuous Arterial Spin Labeling by using real-time Motion Correction
Michael Helle 1 , Peter Koken 1 , and Julien Sngas 1
Philips Research, Hamburg, Germany
Arterial Spin Labeling (ASL) relies on the subtraction
of several pairs of label and control images in order to
cancel out signal from static tissue and to generate
perfusion-weighted images. This makes ASL sensitive to
motion which can result in image blurring and
subtraction artifacts. In this study, subject motion is
addressed by performing tracker scans within the
labeling delay of a conventional pseudo-continuous ASL
sequence and by adapting the orientation of the image
volume if necessary.
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