A diffusion MRI tractography atlas for concurrent white matter mapping across Eastern and Western populations
arxiv(2024)
摘要
The study of brain differences across Eastern and Western populations
provides vital insights for understanding potential cultural and genetic
influences on cognition and mental health. Diffusion MRI (dMRI) tractography is
an important tool in assessing white matter (WM) connectivity and brain tissue
microstructure across different populations. However, a comprehensive
investigation into WM fiber tracts between Eastern and Western populations is
challenged due to the lack of a cross-population WM atlas and the large
site-specific variability of dMRI data. This study presents a dMRI tractography
atlas, namely the East-West WM Atlas, for concurrent WM mapping between Eastern
and Western populations and creates a large, harmonized dMRI dataset (n=306)
based on the Human Connectome Project and the Chinese Human Connectome Project.
The curated WM atlas, as well as subject-specific data including the harmonized
dMRI data, the whole brain tractography data, and parcellated WM fiber tracts
and their diffusion measures, are publicly released. This resource is a
valuable addition to facilitating the exploration of brain commonalities and
differences across diverse cultural backgrounds.
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