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Updated: Mar 14, 2026

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging

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Published on: November 8, 2012

Mapping Human Corpus Callosum Connectivity With Diffusion Spectrum Imaging: A Deterministic Tractography Approach.

Chao Zhang^1,2,3, Jian-Wei Shi^1,2,3, Zhen-Ming Wang^4,5

¹Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.

Brain and Behavior

|March 13, 2026

Summary

This summary is machine-generated.

This study created a detailed brain atlas of the corpus callosum (CC) using diffusion spectrum imaging (DSI). The atlas maps CC connectivity, enhancing understanding of interhemispheric communication for clinical use.

Keywords:

corpus callosum deterministic tractography diffusion spectrum imaging transcallosal tracts

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Area of Science:

Neuroimaging
Neuroanatomy
Brain Connectivity

Background:

The corpus callosum (CC) is crucial for interhemispheric communication.
High-resolution mapping of CC subregions is needed for clinical applications.

Purpose of the Study:

To create a high-resolution atlas of the corpus callosum (CC).
To detail CC subregional connectivity using diffusion spectrum imaging (DSI).
To improve understanding of interhemispheric communication for clinical applications.

Main Methods:

Diffusion spectrum imaging (DSI) was used on 44 healthy individuals.
Quantitative anisotropy (QA)-based deterministic fiber tracking mapped CC connectivity.
Connectivity was correlated with cortical subregions from AAL and BNA atlases.

Main Results:

Identified 41 AAL and 101 BNA regions in the CC midsagittal plane.
Mapped frontal, motor/sensory, and temporal projection subregions within the CC.
Revealed complex, heterogeneous CC connectivity reflecting diverse structural and functional roles.

Conclusions:

Developed the first extensive CC atlas integrating anatomical and functional connectivity.
Utilized QA-based DSI deterministic tractography for mapping.
The freely available atlas offers insights for neuroscience research and clinical practice.