Volumetric navigators for prospective motion correction and selective reacquisition in neuroanatomical MRI

• Published in: Magnetic resonance in medicine Vol. 68; no. 2; pp. 389 - 399
• Main Authors: Tisdall, M. Dylan, Hess, Aaron T., Reuter, Martin, Meintjes, Ernesta M., Fischl, Bruce, van der Kouwe, André J. W.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.08.2012
• Subjects: Algorithms; Brain - anatomy & histology; brain morphometry; Humans; Image Enhancement - methods; Image Interpretation, Computer-Assisted - methods; Imaging, Three-Dimensional - methods; Magnetic Resonance Imaging - methods; Motion; navigator; Neuroradiography - methods; Pattern Recognition, Automated - methods; prospective motion correction; Reproducibility of Results; Sensitivity and Specificity; validation

We introduce a novel method of prospectively compensating for subject motion in neuroanatomical imaging. Short three‐dimensional echo‐planar imaging volumetric navigators are embedded in a long three‐dimensional sequence, and the resulting image volumes are registered to provide an estimate of the s...