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2012
Journal Article
Titel
Real time correction of extended segmented arterial spin labeling protocols using stereoscopic optical head motion tracking
Titel Supplements
Abstract
Abstract
Head motion results in severe image artifacts especially in Arterial Spin Labeling (ASL), which relies on identical positioning of label and control images. This issue is amplified when using segmented readout - which cannot be corrected in post processing - and running extended clinical protocols. A real-time head motion tracking system is evaluated using MR-compatible cameras attached to the head coil, tracking blue dot markers on the forehead. Two ASL protocols were evaluated based on the protocols of a current clinical acute stroke treatment study, where monitoring during thrombolysis is done using repeated ASL perfusion imaging over a period of one hour.
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