FreeSurfer cortical normative data for adults using Desikan-Killiany-Tourville and ex vivo protocols

Authors: Potvin, Olivier; Dieumegarde, Louis; Duchesne, Simon
Abstract: We recently built normative data for FreeSurfer morphometric estimates of cortical regions using its default atlas parcellation (Desikan-Killiany or DK) according to individual and scanner characteristics. We aimed to produced similar normative values for Desikan-Killianny-Tourville (DKT) and ex vivo-based labeling protocols, as well as examine the differences between these three atlases. Surfaces, thicknesses, and volumes of cortical regions were produced using cross-sectional magnetic resonance scans from the same 2713 healthy individuals aged 18 to 94 years as used in the reported DK norms. Models predicting regional cortical estimates of each hemisphere were produced using age, sex, estimated intracranial volume (eTIV), scanner manufacturer and magnetic field strength (MFS) as predictors. The DKT and DK models generally included the same predictors and produced similar R2. Comparison between DK, DKT, ex vivo atlases normative cortical measures showed that the three protocols generally produced similar normative values.
Document Type: Article de recherche
Issue Date: 4 May 2017
Open Access Date: 4 May 2018
Document version: AM
Permalink: http://hdl.handle.net/20.500.11794/13944
This document was published in: NeuroImage (2017)
https://doi.org/10.1016/j.neuroimage.2017.04.035
Academic Press
Alternative version: 10.1016/j.neuroimage.2017.04.035
Collection:Articles publiés dans des revues avec comité de lecture

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