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Real-time brain masking algorithm improves motion tracking accuracy in scans with volumetric navigators (vNavs)
Malte Hoffmann1,2, Robert Frost1,2, David Salat1,2
1Athinoula A Martinos Center for Biomedical Imaging, Charlestown, MA, US.
Abstract:
We demonstrate that non-rigid deformations of, e.g., the mouth introduce bias in the vNav-based detection of brain motion, which causes artifacts. We present real-time brain extraction for vNavs and show that these artifacts can be removed by brain-masked registration.
