4.7 Article

Multi-modal multi-resolution atlas of the human neonatal cerebral cortex based on microstructural similarity

Journal

NEUROIMAGE
Volume 272, Issue -, Pages -

Publisher

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.neuroimage.2023.120071

Keywords

Multi modal MRI; Structure -function; Parcellation; Neonate; Developing human connectome

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The neonatal period is a critical window for brain development and has implications for long-term cognition and disorders. This study used multi-modal MRI data to generate automated multi-resolution and neonate-specific parcellations of the cerebral cortex, which showed high reproducibility and stability. Additionally, a manually delineated parcellation with high interpretability was provided. These findings may facilitate future studies of the human connectome in early development.
The neonatal period is a critical window for the development of the human brain and may hold implications for the long-term development of cognition and disorders. Multi-modal connectome studies have revealed many important findings underlying the adult brain but related studies were rare in the early human brain. One potential challenge is the lack of an appropriate and unbiased parcellation that combines structural and functional information in this population. Using 348 multi-modal MRI datasets from the developing human connectome project, we found that the information fused from the structural, diffusion, and functional MRI was relatively stable across MRI features and showed high reproducibility at the group level. Therefore, we generated automated multi-resolution parcellations (300 - 500 parcels) based on the similarity across multi-modal features using a gradient-based parcellation algorithm. In addition, to acquire a parcellation with high interpretability, we provided a manually delineated parcellation (210 parcels), which was approximately symmetric, and the adjacent areas around each boundary were statistically different in terms of the integrated similarity metric and at least one kind of original features. Overall, the present study provided multi-resolution and neonate-specific parcellations of the cerebral cortex based on multi-modal MRI properties, which may facilitate future studies of the human connectome in the early development period.

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