Statistical modeling and EM clustering of white matter fiber tracts | IEEE Conference Publication | IEEE Xplore

Statistical modeling and EM clustering of white matter fiber tracts


Abstract:

A statistical model of the fiber bundles is calculated as the average and standard deviation of a parametric representation of the fiber tracts, using the coefficients of...Show More

Abstract:

A statistical model of the fiber bundles is calculated as the average and standard deviation of a parametric representation of the fiber tracts, using the coefficients of the 3D quintic B-spline representation of the tracts. An atlas of the fiber tracts is constructed by averaging the bundle models over a population with the fiber tracts mapped onto the atlas coordinate. Using the model representation and with the atlas as the prior map, expectation-maximization (EM) is performed to cluster the fiber tracts in a mixture model framework. As an application, the method is applied to cluster the corpus callosum fiber tracts into its subdivisions and to calculate quantitative parameters for each region
Date of Conference: 06-09 April 2006
Date Added to IEEE Xplore: 08 May 2006
Print ISBN:0-7803-9576-X

ISSN Information:

Conference Location: Arlington, VA, USA

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