Automatic registration of postmortem brain slices to MRI reference volume

A new strategy to register each slice of the postmortem brain to anatomically corresponding in-vivo MRI slices is presented. The approach relies on a recursive reslicing of the FVIRI volume using non-linear polynomial transformations. Simulation studies to validate the approach and results using real data are presented. The results suggest the feasibility and practicability of second- and third-order polynomials to register postmortem images on a slice-by-slice basis to corresponding MRI sections. Using this method, it is possible to investigate the pathology of a disease through routinely acquired MRIs and postmortem brain images.

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