Malte Hoffmann, Robert Frost, David Salat, M Dylan Tisdall, Jonathan Polimeni, André van der Kouwe
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Real-time brain masking algorithm improves motion tracking accuracy in scans with volumetric navigators (vNavs).
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.
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