Abstract
We describe a method for correcting the distortions present in echo planar images (EPI) and registering the EPI to structural MRI. A fieldmap is predicted from an air / tissue segmentation of the MRI using a perturbation method and subsequently used to unwarp the EPI data. Shim and other missing parameters are estimated by registration. We obtain results that are similar to those obtained using fieldmaps, however neither fieldmaps, nor knowledge of shim coefficients is required. © 2008 Springer Berlin Heidelberg.
Cite
CITATION STYLE
Poynton, C., Jenkinson, M., Whalen, S., Golby, A. J., & Wells, W. (2008). Fieldmap-free retrospective registration and distortion correction for EPI-based functional imaging. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 5242 LNCS, pp. 271–279). Springer Verlag. https://doi.org/10.1007/978-3-540-85990-1_33
Register to see more suggestions
Mendeley helps you to discover research relevant for your work.
