Measurements of brain microstructure and connectivity with diffusion MRI
Journal: Journal of Analytical Science and Technology (JAST) (Vol.2, No. 3)Publication Date: 2011-12-15
Authors : Chun-Yi Zac Lo Yong He Ching-Po Lin;
Page : A99-A102
Keywords : diffusion MRI; brain connectivity; graph theory;
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Abstract
By probing direction-dependent diffusivity of water molecules, diffusion MRI has shown its capability to reflect the microstructural tissue status and to estimate the neural orientation and pathways in the living brain. This approach has supplied novel insights into in-vivo human brain connections. By detecting the connection patterns, anatomical architecture and structural integrity between cortical regions or subcortical nuclei in the living human brain can be easily identified. It thus opens a new window on brain connectivity studies and disease processes. During the past years, there is a growing interest in exploring the connectivity patterns of the human brain. Specifically, the utilities of noninvasive neuroimaging data and graph theoretical analysis have provided important insights into the anatomical connections and topological pattern of human brain structural networks in vivo. Here, we review the progress of this important technique and the recent methodological and application studies utilizing graph theoretical approaches on brain structural networks with structural MRI and diffusion MRI.
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Last modified: 2012-11-07 23:18:15