Automatic cortical surface parcellation based on fiber density information

Degang Zhang, Lei Guo, Gang Li, Jingxin Nie, Fan Deng, Kaiming Li, Xintao Hu, Tuo Zhang, Xi Jiang, Dajiang Zhu, Qun Zhao, Tianming Liu

科研成果: 书/报告/会议事项章节会议稿件同行评审

19 引用 (Scopus)

摘要

It is widely believed that the structural connectivity of a brain region largely determines its function. High resolution Diffusion Tensor Imaging (DTI) is now able to image the axonal fibers in vivo and the DTI tractography result provides rich connectivity information. In this paper, a novel method is proposed to employ fiber density information for automatic cortical parcellation based on the premise that fibers connecting to the same cortical region should be within the same functional brain network and their aggregation on the cortex can define a functionally coherent region. This method consists of three steps. Firstly, the fiber density is calculated on the cortical surface. Secondly, a flow field is obtained by calculating the fiber density gradient and a flow field tracking method is utilized for cortical parcellation. Finally, an atlas-based warping method is used to label the parcellated regions. Our method was applied to parcellate and label the cortical surfaces of eight healthy brain DTI images, and interesting results are obtained. In addition, the labeled regions are used as ROIs to construct structural networks for different brains, and the graph properties of these networks are measured.

源语言英语
主期刊名2010 7th IEEE International Symposium on Biomedical Imaging
主期刊副标题From Nano to Macro, ISBI 2010 - Proceedings
1133-1136
页数4
DOI
出版状态已出版 - 2010
活动7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Rotterdam, 荷兰
期限: 14 4月 201017 4月 2010

出版系列

姓名2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings

会议

会议7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010
国家/地区荷兰
Rotterdam
时期14/04/1017/04/10

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