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Abstract #2524

Demonstration of TE-dependence of lateralization of structural connectomes

Yifei He1, Xiaoming Liu2,3, Peng Sun4, Tenglong Wang1, Yizhe Zhang1, Jiaolong Qin1, Tao Zhou1, and Ye Wu1
1Nanjing University of Science and Technology, Nanjing, China, 2Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China, 3Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China, 4Philips Healthcare, Wuhan, China

Synopsis

Keywords: Tractography, Tractography & Fibre Modelling

Motivation: Lateralization of structural connectomes has become a widespread measurement for investigating brain asymmetry alterations during brain development, maturation and aging in health and disease. However, it is still unclear whether the acquisition parameters affect the lateralization measurement of structural connectomes.

Goal(s): We aim to investigate the TE-dependence of lateralization of structural connectomes.

Approach: We compared the lateral indices of structural connectivity generated by diffusion MRI on five different TEs.

Results: Diverse TE values in MRI scans lead to apparent differences in connectome lateralization, with more than 30% of connections of the same subject likely to have different lateral indices.

Impact: This research reveals the unknown relationship between TE and connectome lateralization and discover the potential influence of TE in connectome’s anatomy analysis, helping improve the acquisition protocol of future neuroimaging studies, especially in brain asymmetry during development, maturation and aging.

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Keywords