Improving Motion Robustness of Pseudo-Continuous Arterial Spin Labeling by using real-time Motion Correction

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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