Zhukov, Leonid and Barr, Alan H. (2002) Oriented tensor reconstruction: tracing neural pathways from diffusion tensor MRI. In: IEEE Visualization (VIS 2002), Boston, MA, 27 October-1 November 2002. IEEE , Piscataway, NJ, pp. 387-394. ISBN 0780374983 http://resolver.caltech.edu/CaltechAUTHORS:ZHUviz02
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In this paper we develop a new technique for tracing anatomical fibers from 3D tensor fields. The technique extracts salient tensor features using a local regularization technique that allows the algorithm to cross noisy regions and bridge gaps in the data. We applied the method to human brain DT-MRI data and recovered identifiable anatomical structures that correspond to the white matter brain-fiber pathways. The images in this paper are derived from a dataset having 121x88x60 resolution. We were able to recover fibers with less than the voxel size resolution by applying the regularization technique, i.e., using a priori assumptions about fiber smoothness. The regularization procedure is done through a moving least squares filter directly incorporated in the tracing algorithm.
|Item Type:||Book Section|
|Additional Information:||© 2002 IEEE. Reprinted with Permission. Publication Date: 27 Oct.-1 Nov. 2002. Posted online: 2008-02-25. We would like to thank Yarden Livnat for the initial discussion, Gordon Kindlmann and SCI Institute for the data, David Breen for suggestions. We are also grateful to our reviewers for multiple valuable comments and suggestions. This work was supported by National Science Foundation grants #ASC-89-20219 and #ACI-9982273, and the National Institute on Drug Abuse and the National Institute of Mental Health, as part of the Human Brain Project.|
|Subject Keywords:||Diffusion tensors; adaptive filtering; moving least squares; streamlines; fiber tracing; pathways; salient features; biomedical MRI; data visualisation; eigenvalues and eigenfunctions; interpolation; least squares approximations; 3D tensor fields; a priori assumptions; anatomical fibers tracing; brain-fiber pathways; computer graphics; diffusion tensor MRI; human brain DT-MRI data; identifiable anatomical structures; least squares filter; neural pathways tracing; oriented tensor reconstruction; voxel size resolution|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Kristin Buxton|
|Deposited On:||01 Apr 2008|
|Last Modified:||26 Dec 2012 09:55|
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